Spirotricyclic derivatives and their use as phosphodiesterase-7 inhibitors

Abstract

The invention provides compounds which are PDE7inhibitors, having the following formula (I), (II) and (III) in which X 1 , X 2 , X 3 , X 4 , X, Y, Z, A and Z 1 are as defined in the description, methods for preparing them and their use for the treatment of disorders for which therapy by a PDE7 inhibitor is relevant.

1 . Compounds having the following formula (I), (II) or (III),  
       
         
           
           
               
               
           
         
       
       in which, 
 a) X 1 , X 2 , X 3  and X 4  are the same or different and are selected from: 
 N, provided that not more than two of the groups X 1 , X 2 , X 3  and X 4  simultaneously represent a nitrogen atom, or,  
 C-R 1 , in which R 1  is selected from: 
 Q1, or  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with one or several groups Q2;  
 the group x 5 -R 5  in which, 
 x 5  is selected from: 
 a single bond,  
 lower alkylene, lower alkenylene or lower alkynylene, optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, ,the carbon atoms of these groups being unsubstituted or substituted with one or several groups, identical or different, selected from SR 6 , OR 6 , NR 6 R 7 , ═O, ═S or ═N-R 6  in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl, and,  
 
 
 R 5  is selected from aryl, heteroaryl, cycloalkyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from o; S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S, S(═O), SO 2  or N, or a bicyclic group, these groups being unsubstituted or substituted with one or several groups selected from Q3, heteroaryl or lower alkyl optionally substituted with Q3;  
 in which Q1, Q2, Q3 are the same or different and are selected from  
 
 
 hydrogen, halogen, CN, NO 2 , SO 3 H, P(═O)(OH) 2    
 OR 2 , OC(═O)R 2 , C(═O)OR 2 , SR 2 , S(═O)R 2 , C(═O)—NH—SO 2 —CH 3 , NR 3 R 4 , Q-R 2 , Q-NR 3 R 4 , NR 2 -Q-NR 3 R 4  or NR 3 -Q-R 2  in which Q is selected from C(═NR), C(═O), C(═S) or SO 2 , R is selected from hydrogen, CN, SO 2 NH 2  or lower alkyl and R 2 , R 3  and R 4  are the same or different and are selected from: 
 hydrogen,  
 lower alkyl optionally interrupted with C(═O), Q4-aryl, Q4-heteroaryl, Q4-cycloalkyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, or Q4-cycloalkenyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, in which 
 Q4 is selected from (CH 2 )n, lower alkyl interrupted with one heteroatom selected from O, S or N, lower alkenyl or lower alkynyl, these groups being optionally substituted with lower alkyl, OR′ or NR′R″ in which R′ and R″ are the same or different and are selected from hydrogen or lower lower alkyl;  
 n is an integer selected from 0, 1, 2, 3 or 4;  
 
 these groups being unsubstituted or substituted with one or several groups selected from lower alkyl, halogen, CN, CH 3 , SO 3 H, SO 2 CH 3 , C(═O)—NH—SO 2 —CH 3 , CF 3 , OR 6 , COOR 6 , C(═O)R 6 , NR 6 R 7 , NR 6 C(═O)R 7 , C(═O)NR 6 R 7  or SO 2 NR 6 R 7 , in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl optionally substituted with one or two groups selected from OR, COOR or NRR 8  in which R and R 8  are hydrogen or lower alkyl, and,  
 R 6  and R 7 , and/or, R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S, S(═O), SO 2 , or N, and which may be substituted with,  
 (CH 2 ) n -Q5, in which n is an integer selected from 0, 1, 2 and 3, and Q5 is a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from, 
 H, or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N; or,  
 
 when X 1  and X 2  both represent C-R 1 , the 2 substituents R 1  may form together with the carbon atoms to which they are attached, a 5-membered heterocyclic ring comprising a nitrogen atom and optionally a second heteroatom selected from O, S or N;  
 b) X is O or NR 9 , in which R 9  is selected from, 
 hydrogen, CN, OH, NH 2 ,  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with cycloalkyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, aryl, heteroaryl, OR 10 , COOR 10  or NR 10 R 11  in which R 10  and R 11  are the same or different and are selected from hydrogen or lower alkyl;  
 
 c) Y is selected from O, S or N-R 12 , in which R 12  is selected from: 
 hydrogen, CN, OH, NH 2 ,  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with, cycloalkyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, aryl, heteroaryl, OR 10 , COOR 10  or NR 10 R 11  in which R 10  and R 11  are the same or different and are selected from hydrogen or lower alkyl;  
 
 d) Z is chosen from CH—NO 2 , O, S or NR 13  in which R 13  is selected from: 
 hydrogen, CN, OH, NH 2 , aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, C(═O)R 14 , C(═O)NR 14 R 15 , OR 14 , or,  
 lower alkyl, unsubstituted or substituted with one or several groups which are the same or different and which are selected OR 14 , COOR 10  or NR 14 R 15 ;  
 R 14  and R 15  being independently selected from hydrogen or lower alkyl, or, R 14  and R 15 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms chosen from O, S or N, and which may be substituted with a lower alkyl, or,  
 when Y is N—R 12  and Z is N—R 13 , may form together a —CH═N— group or a —C═C— group,  
 when X is N—R 9  and Z is N—R 13 , R 9  and R 13  may form together a —CH═N— group or a —C═C— group;  
 
 e) Z 1  is chosen from H, CH 3  or NR 16 R 17  in which R 16  and R 17  are the same or different and are selected from: 
 hydrogen, CN, aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, C(═O)R 14 , C(═O)NR 14 R 15 , OR 4 , or,  
 lower alkyl unsubstituted or substituted with one or several groups selected from OR 4 , COOR 14  or NR 4 R 15 ,  
 R 14  and R 15  being chosen from hydrogen or lower alkyl, and,  
 R 14  and R 15 , and/or, R 16  and R  17 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms chosen from O, S or N, and which may be substituted with a lower alkyl;  
 
 f) A is a cycle chosen from:  
                     
  in which, 
 A 1 , A 2 , A 4 , A 5  and A 6  are the same or different and are selected from O, S, C, C(═O), SO, SO 2  or N—R 18  in which R 18  is selected from: 
 hydrogen, aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N,  
 lower alkyl unsubstituted or substituted with aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, CN, NR 19 R 20 , C(═O)NR 19 R 20 , OR 19 , C(═O)R 19  or C(═O)OR 19  in which R 19  and R 20  are identical or different and are selected from hydrogen or lower alkyl;  
 
 
 A 3  is selected from O, S, C, C(═O), SO or SO 2 , or N—R 18  when A 1  and/or A 2  are C(═O) or when Y is O or S, wherein R 18  is as defined above;  
 represents the carbon atom which is shared between the cycle A and the backbone cycle containing X and/or Y;  
 each carbon atom of the cycle A is unsubstituted or substituted with 1 or 2 groups, identical or different, selected from lower alkyl optionally substituted with OR 21 , NR 21 R 22 , COOR 21  or CONR 21  R 22 , lower haloalkyl, CN, F, ═O, SO 2 NR 19 R 20 , OR 19 , SR 19 , C(═O)OR 19 , C(═O)NR 19 R 20  or NR 19 R 20  in which R 19  and R 20  are identical or different and are selected from hydrogen or lower alkyl optionally substituted with OR 21 , NR 21 R 22 , COOR 21  or CONR 21 R 22  in which R 21  and R 22  are identical or different and are selected from hydrogen or lower alkyl, and, 
 R 19  and R 20 , and/or, R 21  and R 22 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring;  
 
 2 atoms of the cycle A, which are not adjacent, may be linked by a 2, 3 or 4 carbon atom chain which may be interrupted with 1 heteroatom chosen from O, S or N;  
 provided that:  
 not more than two of the groups A 1 , A 2 , A 3 , A 4 , A 5  and A 6  simultaneously represent a heteroatom;  
 the cycle A does not contain more than 2 carbon atoms in an sp 2  hybridization state;  
 when X is O,X 2  is not C-R 1  in which R 1  is 
 a thienyl substituted with CN or with CN and CH 3 ,  
 a phenyl substituted with CN, Cl, NO 2  or CN and F,  
 Br  
 F;  
 or their tautomeric forms, their racemic forms or their isomers and their pharmaceutically acceptable derivatives.  
 
 
     
     
         2 . A compound of formula (II) or (III) according to  claim 1 , in which, 
 a) X 1 , X 2  and X 3  are the same or different and are C-R 1 , in which R 1  is selected from: 
 hydrogen, halogen, CN, SO 3 H, NO 2 , CF 3 , OR 2 , SR 2 , NR 2 R 3 , COR 2 , COOR 2 , CONR 2 R 3 , SO 2 CH 3 , SO 2 NR 2 R 3  in which R 2  and R 3  are the same or different and are selected from hydrogen or lower alkyl optionally substituted with halogen, CN, SO 3 H, OR 6 , COOR 6 , NR 6 R 7 , SO 2 NR 6 R 7  or C(═O)NR 6 R 7  in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl, and, 
 R 6  and R 7 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring;  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with 1, 2 or 3 groups selected from halogen, CN, OR 2 , COOR 2 , NR 3 R 4 , SO 2 NR 3 R 4  or C(═O)NR 3 R 4  in which R 2 , R 3  and R 4  are the same or different and are selected from hydrogen or lower alkyl, and,  
 R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring;  
 
   the group X 5 —R 5  in which, 
 X 5  is selected from a lower alkylene or a single bond, and,  
 R 5  is selected from phenyl, pyridyl or indolyl,  
 these groups being unsubstituted or substituted with one or several groups selected from Q3, heteroaryl or lower alkyl optionally substituted with Q3 in  
   which Q3 is selected from:    halogen, CN, SO 3 H, NO 2 , CF 3 , OR 2 , OC(═O)R 2 , C(═O)R 2 , C(═O)OR 2 , NH—C(═O)R 2 , NR 3 R 4 , SO 2 NR 3 R 4  or C(═O)NR 3 R 4  in which R 2 , R 3  and R 4  are the same or different and are selected from: 
 hydrogen, lower alkyl unsubstituted or substituted with one or several groups selected from halogen, OR 6 , COOR 6  or NR 6 R 7  in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl and,  
 R 6  and R 7 , and/or, R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N, and which may be substituted with 
 a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from 
 H, or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N;  
 
   b) X 4  is C-R 1  in which R 1  is selected from hydrogen, halogen, CN, NO 2 , SO 2 CH 3 , SO 3 H, CH 3 , CF 3 , OR 2 , SR 2 , NR 2 R 3 , COOR 2 , CONR 2 R 3  or SO 2 NR 2 R 3  in which R 2  and R 3  are the same or different and are selected from hydrogen or lower alkyl;    c) X is NH;    d)Y is NH;    e) Z 1  is chosen from NR 16 R 17  in which R 16  and R 17  are the same or different and are selected from: 
 hydrogen, CN, C(═O)R 14 , (C═O)NR 14 R 15 , OR 14    
 lower alkyl unsubstituted or substituted with one or several groups selected from OR 14  or NR 14 R 15 ,  
 R 14  and R 15  being chosen from hydrogen or lower alkyl, and,  
 R 14  and R 15 , and/or, R 16  and R 17 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms selected from O, S or N, and which may be substituted with a lower alkyl;  
   f) A is a cycle chosen from:                           in which, 
 A 1 , A 2 , A 3 , A 4  and A 5  are the same or different and are selected from: 
 a carbon atom, unsubstituted or substituted with 1 or 2 groups, identical or different selected from lower alkyl, OH or F, or,  
 an oxygen atom;  
 
   represents the carbon atom which is shared between the cycle A and the backbone cycle containing X and/or Y;    2 atoms of the cycle A, which are not adjacent, may be linked by a 2, 3 or 4 carbon atom chain;    provided that:    not more than one of the groups A 1 , A 2 , A 3 , A 4  and A 5  simultaneously represent an oxygen atom.    
     
     
         3 . A compound of formula (I) in which X 1 , X 2 , X 3 , X 4 , X, Y, Z and A are as defined in  claim 1 .  
     
     
         4 . A compound of formula (I) according to  claim 3  in which 
 a) X 1 , X 2  and X 3  are the same or different and are C—R 1 , in which R 1  is selected from: 
 hydrogen, halogen, CN, SO 3 H, NO 2 , CF 3 , OR 2 , SR 2 , NR 2 R 3 , COR 2 , COOR 2 , CONR 2 R 3 , SO 2 CH 3 , SO 2 NR 2 R 3  in which R 2  and R 3  are the same or different and are selected from hydrogen or lower alkyl optionally substituted with halogen, CN, OR 6 , COOR 6 , NR 6 R 7 , SO 2 NR 6 R 7  or C(═O)NR 6 R 7  in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl, and, 
 R 6  and R 7 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring;  
 
 
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with 1, 2 or 3 groups selected from halogen, CN, SO 3 H, OR 2 , COOR 2 , NR 3 R 4 , SO 2 NR 3 R 4  or C(═O)NR 3 R 4  in which R 2 , R 3  and R 4  are the same or different and are selected from hydrogen or lower alkyl, and, 
 R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring;  
 
 the group X 5   13  R 5  in which, 
 X 5  is selected from a lower alkylene or a single bond, and,  
 R 5  is selected from phenyl, pyridyl or indolyl,  
 these groups being unsubstituted or substituted with 1, 2 or 3 groups selected from Q3, heteroaryl or lower alkyl optionally substituted with Q3 in which Q3 is selected from:  
 
 halogen, CN, SO 3 H, NO 2 , CF 3 , OR 2 , OC(═O)R 2 , C(═O)R 2 , C(═O)OR 2 , NH-C(═O)R 2 , NR 3 R 4 , SO 2 NR 3 R 4  or C(═O)NR 3 R 4  in which R 2 , R 3  and R 4  are the same or different and are selected from: 
 hydrogen, lower alkyl unsubstituted or substituted with one or several groups selected from halogen, OR 6 , COOR 6  or NR 6 R 7  in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl and,  
 R 6  and R 7 , and/or, R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N, and which may be substituted with, 
 a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from, 
 H, or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N;  
 
 
 
 b) X 4  is C-R 1  in which R 1  is selected from hydrogen, halogen, CN, NO 2 , SO 2 CH 3 , SO 3 H, CH 3 , CF 3 , OR 2 , SR 2 , NR 2 R 3 , COOR 2 , CONR 2 R 3  or SO 2 NR 2 R 3  in which R 2  and R 3  are the same or different and are selected from hydrogen or lower alkyl;  
 c) X is NH;  
 d) Y is NH;  
 e) Z is chosen from O, S or NR 13  in which R 13  is hydrogen or CN;  
 f) A is a cycle chosen from:  
                     
  in which, 
 A 1 , A 2 , A 3 , A 4  and A 5  are the same or different and are selected from: 
 a carbon atom, unsubstituted or substituted with 1 or 2 groups, identical or different selected from lower alkyl, OH or F, or,  
 an oxygen atom;  
 
 
 represents the carbon atom which is shared between the cycle A and the backbone cycle containing X and/or Y;  
 2 atoms of the cycle A, which are not adjacent, may be linked by a 2, 3 or 4 carbon atom chain;  
 provided that:  
 not more than one of the groups A 1 , A 2 , A 3 , A 4  and A 5  simultaneously represent an oxygen atom.  
 
     
     
         5 . A compound of formula (I), according to  claim 1  in which, X 1 , X 2 , X 3  and X 4  are the same or different and are C—R 1 , in which R 1  is selected from: 
 Q1, or 
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with 1, 2 or 3 groups Q2;  
 the group X 5   13  R 5  in which, 
 X 5  is selected from: 
 a single bond,  
 a lower alkylene, optionally interrupted with 1 heteroatoms chosen from O, S and N  
 
 R 5  is selected from aryl, heteroaryl, cycloalkyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S, S(═O), SO 2  or N, or a bicyclic group, these groups being unsubstituted or substituted with 1, 2 or 3 groups selected from Q3, heteroaryl or lower alkyl optionally substituted with Q3;  
 in which Q1, Q2, Q3 are the same or different and are selected from  
 
 
 hydrogen, halogen, CN, NO 2 , SO 3 H,  
 OR 2 , OC(═O)R 2 , C(═O)OR 2 , SR 2 , S(═O)R 2 , C(═O)—NH—SO 2 —CH 3 , NR 3 R 4 , Q-R 2 , Q-NR 3 R 4 , NR 2 -Q-NR 3 R 4  or NR 3 -Q-R 2  in which Q is selected from C(═NR), C(═O), C(═S) or SO 2 , R is selected from hydrogen or lower alkyl and R 2 , R 3  and R 4  are the same or different and are selected from: 
 hydrogen,  
 lower alkyl optionally interrupted with C(═O), Q4-aryl, Q4-heteroaryl, Q4-cycloalkyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, or Q4-cycloalkenyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, in which 
 Q4 is selected from (CH 2 )n, lower alkyl interrupted with one heteroatom selected from O, S or N, lower alkenyl or lower alkynyl, these groups being optionally substituted with lower alkyl, OR′ or NR′R″ in which R′ and R″ are the same or different and are selected from hydrogen or lower alkyl;  
 n is an integer selected from 0, 1, 2, 3 or 4;  
 
 these groups being unsubstituted or substituted with 1 or 2 groups selected from lower alkyl, halogen, CN, CH 3 , SO 3 H, SO 2 CH 3 , CF 3 , C(═O)NH—SO 2 CH 3 , OR 6 , COOR 6 , C(═O)R 6 , NR 6 R 7 , C(═O)NR 6 R 7  or SO 2 NR 6 R 7 , in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl optionally substituted with one or two groups selected from OR, COOR or NRR 8  in which R and R 8  are hydrogen or lower alkyl, and,  
 R 6  and R 7 , and/or, R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S, S(═O), SO 2  or N, and which may be substituted with, 
 (CH 2 ) n -Q5, in which n is an integer selected from 0, 1, 2 and 3, and Q5 is a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from, 
 H, or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N.  
 
 
 
 
     
     
         6 . A compound of formula (I) according to  claim 5 , in which X 1 , X 2 , X 3  and X 4  are the same or different and are C—R 1 , in which R 1  is selected from: 
 Q1, or  
 lower alkyl or lower alkynyl, these groups being unsubstituted or substituted with 1, 2 or 3 fluor atoms, OR 3 , COOR 3  or NR 3 R 4  in which R 3  and R 4  are the same or different and are selected from hydrogen or lower alkyl; 
 R 3  and R 4  together with the nitrogen atom to which they are linked, may also form a 6-membered heterocyclic ring, which may contain one or two heteroatoms selected from O or N;  
 
 the group X 5 —R 5  in which X 5  is a single bond and R 5  is selected from aryl, heteroaryl, or a bicyclic group, these groups being unsubstituted or substituted with 1, 2 or 3 groups selected from Q3,  
 in which Q1 and Q3 are the same or different and are selected from  
 hydrogen, halogen, CN, lower alkyl,  
 OR 2 , C(═O)OR 2 , NR 3 R 4 , C(═O)NR 3 R 4  or SO 2 NR 3 R 4  in which R 2 , R 3 and R 4  are the same or different and are selected from: 
 hydrogen,  
 lower alkyl, Q4-heteroaryl in which Q4 is selected from lower alkyl interrupted with one heteroatom selected from O, S or N and (CH 2 ) n  in which n is an integer selected from 0, 1, 2 or 3; 
 these groups being unsubstituted or substituted with 1 or 2 groups selected from lower alkyl, CN, SO 3 H, C(═O)—NH—SO 2 —CH 3 , OR 6 , COOR 6  or NR 6 R 7 , in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl optionally substituted with one or two groups selected from OR, COOR or NRR 8  in which R and R 8  are hydrogen or lower alkyl, and,  
 
 R 6  and R 7 , and/or, R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 6-membered heterocyclic ring, which may contain one or two heteroatoms selected from 0 or N, and which may be substituted with,  
 
 a 6-membered heterocyclic ring, which may contain one or two heteroatoms selected from 0 or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from, 
 H , or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 6-membered heterocyclic ring, which may contain one or two heteroatoms selected from O or N.  
 
 
     
     
         7 . A compound of formula (I) according to  claim 5 , in which, X 1  is C—R 1 , in which R 1  is selected from 
 hydrogen, halogen, OR 2 , COR 2 , COOR 2 ,CONR 2 R 3  in which R 2  and R 3  are the same or different and are selected from 
 hydrogen,  
 lower alkyl, Q4-aryl, Q4-heteroaryl, Q4-cycloalkyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, or N, or Q4-cycloalkenyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, or N, in which 
 Q4 is selected from (CH 2 ) n , lower alkyl interrupted with one heteroatom selected from O, S or N, lower alkenyl or lower alkynyl;  
 n is an integer selected from 0, 1, 2 or 3;  
 
 these groups being unsubstituted or substituted with lower alkyl, CN, OR 6 , SO 3 H, C(═O)—NH—SO 2 —CH 3 , CONR 6 R 7 , COOR 6 , COR 6  or NR 6 R 7 , in which and R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl, optionally substituted with NH 2 , COOH, OH;  
 R 6  and R 7  together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N and which may be substituted with, 
 (CH 2 ) n -Q5, in which n is an integer selected from 0, 1, 2 and 3, and Q5 is a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 COR′ or lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from hydrogen or lower alkyl;  
 
 
 lower alkyl optionally substituted with CN, SO 3 H, OR 3 , NR 3 R 4 , COOR 3  or CONR 3 R 4  in which R 3  and R 4  are the same or different and are selected from 
 hydrogen and,  
 lower alkyl optionally substituted with OH, COOH or NH 2    
 
 the group X 5 —R 5  in which X 5  is a lower alkylene optionally interrupted with a heteroatom selected from O and N and R 5  is selected from aryl, heteroaryl, cycloalkyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S or N and cycloalkenyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S or N,  
 these groups being unsubstituted or substituted OR 3  or COOR 3  in which R 3  is selected from hydrogen and lower alkyl;  
 R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 6-membered heterocyclic ring, which may contain one or two heteroatoms selected from O or N, and which may be substituted with,  
 (CH 2 ) n -Q5, in which n is an integer selected from 0, 1, 2 and 3, and Q5 is a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 C(═O)—R′ or a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from hydrogen or lower alkyl.  
 
     
     
         8 . A compound of formula (I) according to  claim 5  in which, X 1  is C—R 1 , in which R 1  is selected from hydrogen, halogen or OR 2  in which R 2  is selected from 
 hydrogen,  
 lower alkyl, unsubstituted or substituted with CN, C(═O)—NH—SO 2 —CH 3 , OR 6 , SO 3 H, COOR 6  or NR 6 R 7 ;  
 Q4-oxadiazole, Q4-tetrazole, Q4-morpholine, Q4-furan, Q4-isoxazole, in which Q4 is selected from lower alkyl interrupted with one heteroatom selected from O, S or N and (CH 2 ) n  in which n is an integer selected from 1 and 2;  
 these groups being unsubstituted or substituted with CH 3 , OR 6  or COOR 6 , in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl, optionally substituted with NH 2  or COOH.  
 
     
     
         9 . A compound of formula (I) according to any one of claims  5 ,  7  and  8  in which X 2  is C—R 1 , in which R 1  is X 5 —R 5 , in which 
 X 5  is a single bond,  
 R 5  is phenyl or pyridyl, 
 optionally substituted with a lower alkyl, and,  
 substituted with C(═O)NR 3 R 4  in which R 3  and R 4  together with the nitrogen atom to which they are linked, form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S, S(═O), SO 2  or N, and which may be substituted with,  
 
 a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from, 
 H, or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N.  
 
 
     
     
         10 . A compound of formula (I) according to any one of  claims 5  to  9  in which one of X 1 , X 2 , X 3  and X 4  is C—R 1  in which R 1  is hydrogen while the others are identical or different and are C—R 1  in which R 1  is other than hydrogen.  
     
     
         11 . A compound of formula (I) according to  claim 10 , in which X 3  is C—R 1  in which R 1  is hydrogen.  
     
     
         12 . A compound of formula (I) according to any one of claims  5  to 10, in which X 3  is C—R 1 , in which R 1  is selected from 
 hydrogen or halogen, or,  
 X 5 —R 5  in which R 5  is a single bond and R 5  is aryl or heteroaryl, optionally substituted with one, two or three groups which are the same or different and which are selected from halogen, CN, CF 3 , SO 2 Me, OR 2 , COOR 2 , NR 2 R 3 , SO 2 NR 2 R 3  and CONR 2 R 3  in which R 2  and R 3  are the same or different and are selected from hydrogen or lower alkyl.  
 
     
     
         13 . A compound of formula (I) according to  claim 12  in which X 3  is C—R 1 , in which R 1  is selected from hydrogen or halogen.  
     
     
         14 . A compound of formula (I) according to any one of  claims 5  to  13  in which X 4  is C—R 1  in which R 1  is selected from 
 hydrogen, halogen, CF 3 , O-lower alkyl, COOR 2  or,  
 lower alkyl optionally substituted with OR 2 , COOR 2  or SO 2 NR 2 R 3  in which R 2  and R 3  are the same or different and are selected from hydrogen or lower alkyl.  
 
     
     
         15 . A compound of formula (I) according to any one of  claims 5  to  14  in which X is NH.  
     
     
         16 . A compound of formula (I) according to any one of  claims 5  to  15  in which Y is NH.  
     
     
         17 . A compound of formula (I) according to any one of  claims 5  to  16  in which Z is O or N—CN.  
     
     
         18 . A compound of formula (I) according to any one of claims  17  in which Z is O.  
     
     
         19 . A compound of formula (I) according to any one of  claims 5  to  18  in which A is selected from cyclohexyl or cycloheptyl, optionally interrupted with C(═O) or O, and unsubstituted or substituted with CH 3 , OH or OCH 3 .  
     
     
         20 . A compound of formula (I) according to any one of  claims 5  to  19  in which A is selected from unsubstituted cyclohexyl or cycloheptyl.  
     
     
         21 . A compound of formula (I), (II) or (III) according to any one of  claims 1  to  20  wherein when X 2  is C—R 1 and R 1  is X 5   13  R 5 , then X 5  is not a single bond  
     
     
         22 . A compound selected from the group consisting of 
 Spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-Methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro )quinazolin]-2′(1′H)-one,    Spiro[cycloheptane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    7′-Methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-Phenylspiro[cycloheptane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    7′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-bromospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-fluorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′,8′-dichlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′,7′-dichlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′,6′-dichlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-phenylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-iodospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Bromospiro[cyclobutane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Bromospiro[cycloheptane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Bromo-4-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Bromospiro[bicyclo[3,2,1]octane-2-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′,8′-dichlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one    8′-chloro-6′-iodospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-phenylspiro[cycloheptane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-phenylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-(3-pyridyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-(4-pyridyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-(4-carboxyphenyl)-8′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    6′-(3-carboxyphenyl)-8′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    8′-chloro-6′-(1H-indol-5yl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    8′-chloro-6′-(2-pyridyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-(3-dimethylamino-prop-1-ynyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    8′-chloro-6′-(3-methylamino-prop-1-ynyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-methyl-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(3-N-dimethylamino-propylcarboxamide)phenyl]-spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(2-N-dimethylamino-ethylcarboxamide)phenyl]-spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[3-(3-N-dimethylamino-propylcarboxamide)phenyl]-spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro -6′-[3-(4-methyl-piperazine-1-carbonyl)-phenyl]spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[3-(2-N-dimethylamino-ethylcarboxamide)phenyl]spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-thione    8′-Chloro-2′-cyanoiminospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazoline    8′-Chloro-2′-methoxyiminospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazoline,    8′-Chloro-2′-dimethylaminospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazoline],    8′-Chloro-1′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-1′-(ethoxycarbonylmethyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    8′-Chloro-3′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-pyrimidin-2-yl-piperazine-1-carbonyl)phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-(2-morpholin-4-yl-ethyl)-piperazine-1-carbonyl)-phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-(2-morpholin-4-yl-2-oxo-ethyl)-piperazine-1-carbonyl)-phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-(2-hydroxy-ethoxy)-ethyl)-piperazine-1-carbonyl)-phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    9′-Chlorospiro[cyclohexane-1-5′-(5′,10′-dihydro)]-imidazo[2, 1-b]quinazoline    9′-Chlorospiro[cyclohexane-1-5′-(5′,10′-dihydro)]-[1,2,4]triazolo[3,4-b]quinazoline,    9′-Chlorospiro[cyclohexane-1-5′-(4′,5′-dihydro)]-[1 ,2,4]triazolo[4,3-a]quinazoline, Spiro[cyclohexane-1-9′-(8′,9′-dihydro)-pyrazolo[4′,3′-f]quinazolin]-7′(6′H)-one,    8′-Chloro-5′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′,8′-difluorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-6′-(morpholin-4-yl)methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-hydroxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-hydroxy-6′-iodo-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-6′-iodo-5′-methoxy-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-6′-cyano-5′-methoxy-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(4-morpholino)ethoxy]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-dimethylaminoethoxy]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(2-aminoethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(methylamino)ethoxy]-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(2-aminoethoxy)ethoxy]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[3-dimethylaminopropoxy]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-ethoxycarbonylmethoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′-carboxymethoxy-8′-chloro-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′-carboxypropoxy-8′-chloro-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-5′-(3-sulphopropoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(2-hydroxy-ethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(5-ethoxycarbonyl-furan-2-ylmethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(5-carboxy-furan-2-ylmethoxy)-spiro[cyclohexane-1-4′-(3′, 4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-cyanomethoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(1H-tetrazol-5-ylmethoxy)-spiro[cyclohexane-1-4′-(3′, 4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(5-hydroxy-[1 ,2,4]oxadiazol-3-ylmethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro) quinazolin]-2′(1′H)-one,    8′-Chloro-6′-iodo-5′-[2-dimethylamino-ethoxy]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-(4-carboxyphenyl)-8′-chloro-5′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-(3-carboxyphenyl)-8′-chloro-5′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[2-(4-methyl-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[2-methyl-4-(4-methyl-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-carbamoyl-phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-((1-methyl-piperidin-4-yl)-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-5′-methoxy-6′-[4-(4-methyl-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8—CHloro-5-methoxyspiro[4H-benzo[d][1 ,3]oxazin-2-ylamine-4-4′-(tetrahydro-pyran-4′-yl)],    8′-Trifluoromethylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-6′-cyanomethylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(3-dimethylamino-2-hydroxy-propoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(3-methylamino-2-hydroxy-propoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(ethoxycarbonylmethyl-amino)-ethoxy]-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(carboxymethyl-amino)-ethoxy]-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one hydrochloride,    8′-Chloro-5′-(2-methanesulfonylamino-2-oxo-ethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(2-[(5-methyl-isoxazol-3-ylmethyl)-amino]ethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one.    
     
     
         23 . A compound selected from the group consisting of 
 8′-bromospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one, 5′,8′-dichlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Bromospiro[cycloheptane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro )quinazolin]-2′(1′H )-one,    8′-chloro-6′-phenylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-(3-pyridyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-(4-pyridyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1 ′H)-one,    6′-(4-carboxyphenyl)-8′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    6′-(3-carboxyphenyl)-8′-chlorospiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    8′-chloro-6′-(1H-indol-5yl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin ]-2′(1′H)-one,    8′-chloro-6′-(2-pyridyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-(3-dimethylamino-prop-1-ynyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)-quinazolin]-2′(1′H)-one,    8′-chloro-6′-(3-methylamino-prop-1-ynyl)spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-methyl-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(3-N-dimethylamino-propylcarboxamide)phenyl]-spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(2-N-dimethylamino-ethylcarboxamide)phenyl]-spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-(1′H)-one,    8′-chloro-6′-[3-(3-N-dimethylamino-propylcarboxamide)phenyl]-spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro -6′-[3-(4-methyl-piperazine-1-carbonyl)-phenyl]spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[3-(2-N-dimethylamino-ethylcarboxamide)phenyl]spiro-[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-pyrimidin-2-yl-piperazine-1-carbonyl)phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-(2-morpholin-4-yl-ethyl)-piperazine-1-carbonyl)-phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-(2-morpholin-4-yl-2-oxo-ethyl)-piperazine-1-carbonyl)-phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(4-(2-hydroxy-ethoxy)-ethyl)-piperazine-1-carbonyl)-phenyl]spiro[-cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-methylspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-hydroxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-6′-cyano-5′-methoxy-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-[2-(4-morpholino)ethoxy]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′-carboxymethoxy-8′-chloro-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    5′-carboxypropoxy-8′-chloro-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-5′-(3-sulphopropoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(2-hydroxy-ethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(5-ethoxycarbonyl-furan-2-ylmethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(5-carboxy-furan-2-ylmethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-cyanomethoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(1H-tetrazol-5-ylmethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(5-hydroxy-[1,2,4]oxadiazol-3-ylmethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro) quinazolin]-2′(1′H)-one,    6′-(4-carboxyphenyl)-8′-chloro-5′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    6′-(3-carboxyphenyl)-8′-chloro-5′-methoxyspiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1 ′H)-one,    8′-chloro-6′-[2-methyl-4-(4-methyl-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-(piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-carbamoyl-phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-chloro-6′-[4-((1-methyl-piperidin-4-yl)-piperazine-1-carbonyl)phenyl]spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one, and,    8′-Chloro-5′-[2-(carboxymethyl-amino)-ethoxy]-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one hydrochloride,    8′-Chloro-5′-(2-methanesulfonylamino-2-oxo-ethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one,    8′-Chloro-5′-(2-[(5-methyl-isoxazol-3-ylmethyl)-amino]ethoxy)-spiro[cyclohexane-1-4′-(3′,4′-dihydro)quinazolin]-2′(1′H)-one.    
     
     
         24 . A compound according to any one of  claim 1  to  23  for use as a medicament  
     
     
         25 . A pharmaceutical composition comprising a compound according to any one of  claims 1  to  23  in combination with an appropriate carrier.  
     
     
         26 . Use of a compound of formula (I), (II) or (III),  
       
         
           
           
               
               
           
         
       
       in which, 
 a) X 1 , X 2 , X 3  and X 4  are the same or different and are selected from: 
 N, provided that not more than two of the groups X 1 , X 2 , X 3  and X 4  simultaneously represent a nitrogen atom, or,  
 C—R 1 , in which R 1  is selected from: 
 Q1, or  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with one or several groups Q2;  
 the group X 5 —R 5  in which, 
 X 5  is selected from: 
 a single bond,  
 lower alkylene, lower alkenylene or lower alkynylene, optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, the carbon atoms of these groups being unsubstituted or substituted with one or several groups, identical or different, selected from SR 6 , OR 6 , NR 6 R 7 , ═O, ═S or ═N—R 6  in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl, and,  
 
 
 R 5  is selected from aryl, heteroaryl, cycloalkyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with C(═O) or with 1, 2, or 3 heteroatoms chosen from O, S, S(═O), SO 2  or N, or a bicyclic group, these groups being unsubstituted or substituted with one or several groups selected from Q3, heteroaryl or lower alkyl optionally substituted with Q3;  
 in which Q1, Q2, Q3 are the same or different and are selected from  
 
 
 hydrogen, halogen, CN, NO 2 , SO 3 H, P(═O)(OH) 2    
 OR 2 , OC(═O)R 2 , C(═O)OR 2 , SR 2 , S(═O)R 2 , C(═O)—NH—SO 2 —CH 3 , NR 3 R 4 , Q-R 2 , Q-NR 3 R 4 , NR 2 -Q-NR 3 R 4  or NR 3 -Q-R 2  in which Q is selected from C(═NR), C(═O), C(═S) or SO 2 , R is selected from hydrogen, CN, SO 2 NH 2  or lower alkyl and R 2 , R 3  and R 4  are the same or different and are selected from: 
 hydrogen,  
 lower alkyl optionally interrupted with C(═O), Q4-aryl, Q4-heteroaryl, Q4-cycloalkyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, or Q4-cycloalkenyl optionally interrupted with C(═O) or with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, in which 
 Q4 is selected from (CH 2 ) n , lower alkyl interrupted with one heteroatom selected from O, S or N, lower alkenyl or lower alkynyl, these groups being optionally substituted with lower alkyl, OR′ or NR′R″ in which R′ and R″ are the same or different and are selected from hydrogen or lower alkyl;  
 n is an integer selected from 0, 1, 2, 3 or 4;  
 
 
 these groups being unsubstituted or substituted with one or several groups selected from halogen, lower alkyl, CN, CH 3 , SO 3 H, SO 2 CH 3 , C(═O)—NH—SO 2 —CH 3 , CF 3 , OR 6 , COOR 6 , C(═O)R 6 , NR 6 R 7 , NR 6 C(═O)R 7 , C(═O)NR 6 R 7  or SO 2 NR 6 R 7 , in which R 6  and R 7  are the same or different and are selected from hydrogen or lower alkyl optionally substituted with one or two groups selected from OR, COOR or NRR 8  in which R and R 8  are hydrogen or lower alkyl, and, 
 R 6  and R 7 , and/or, R 3  and R 4 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S, S(═O), SO 2  or N, and which may be substituted with, 
 (CH 2 ) n -Q5, in which n is an integer selected from 0, 1, 2 and 3, and Q5 is a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms selected from O, S or N and which may be substituted with a lower alkyl, or,  
 a lower alkyl optionally substituted with OR′, NR′R″, C(═O)NR′R″ or COOR′ in which R′ and R″ are the same or different and are selected from, 
 H, or,  
 lower alkyl optionally substituted with OR or COOR in which R is hydrogen or lower alkyl and,  
 
 R′ and R″ together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring, which may contain one or two heteroatoms selected from O, S or N; or,  
 
 
 when X 1  and X 2  both represent C—R 1 , the 2 substituents R 1  may form together with the carbon atoms to which they are attached, a 5-membered heterocyclic ring comprising a nitrogen atom and optionally a second heteroatom selected from O, S or N;  
 b) X is O, S or NR 9 , in which R 9  is selected from, 
 hydrogen, CN, OH, NH 2 ,  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with cycloalkyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, aryl, heteroaryl, OR 10 , COOR 10  or NR 10 R 11  in which R 10  and R 11  are the same or different and are selected from hydrogen or lower alkyl;  
 
 c) Y is selected from O, S or N—R 12 , in which R 12  is selected from: 
 hydrogen, CN, OH, NH 2 ,  
 lower alkyl, lower alkenyl or lower alkynyl, these groups being unsubstituted or substituted with, cycloalkyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with 1 or 2 heteroatoms chosen from O, S, S(═O), SO 2  or N, aryl, heteroaryl, OR 10 , COOR 10  or NR 10 R 11  in which R 10  and R 11  are the same or different and are selected from hydrogen or lower alkyl;  
 
 d) Z is chosen from CH—NO 2 , O, S or NR 13  in which R 13  is selected from: 
 hydrogen, CN, OH, NH 2 , aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, C(═O)R 14 , C(═O)NR 14 R  15 , OR 14 , or,  
 lower alkyl, unsubstituted or substituted with one or several groups which are the same or different and which are selected OR 14 , COOR 14  or NR 14 R 15 ;  
 R 14  and R 15  being independently selected from hydrogen or lower alkyl, or, R 14  and R 15 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms chosen from O, S or N, and which may be substituted with a lower alkyl, or,  
 when Y is N—R 12  and Z is N—R 13 , R 12  and R 13  may form together a —CH═N— group or a —C═C═group,  
 when X is N—R 9  and Z is N—R 13 , R 9  and R 13  may form together a —CH═N— group or a —C═C— group;  
 
 e) Z 1  is chosen from H, CH 3  or NR 16 R 17  in which R 16  and R 17  are the same or different and are selected from: 
 hydrogen, CN, aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, C(═O)R 14 , C(═O)NR 14 R 15 , OR 4 , or,  
 lower alkyl unsubstituted or substituted with one or several groups selected from OR 14 , COOR 14  or NR 14 R 15 ,  
 R 14  and R 15  being chosen from hydrogen or lower alkyl, and,  
 R 14  and R 15 , and/or, R 16  and R 17 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring which may contain one or two heteroatoms chosen from O, S or N, and which may be substituted with a lower alkyl;  
 
 f) A is a cycle chosen from:  
                     
  in which, 
 A 1 , A 2 , A 3 , A 4 , A 5  and A 6  are the same or different and are selected from O, S, C, C(═O), SO, SO 2  or N—R 18  in which R 18  is selected from: 
 hydrogen, aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N,  
 lower alkyl unsubstituted or substituted with aryl, heteroaryl, cycloalkyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, cycloalkenyl optionally interrupted with one or several heteroatoms chosen from O, S, S(═O), SO 2  or N, CN, NR 19 R 20 , C(═O)NR 19 R 20 , OR 19 , C(═O)R 19  or C(═O)OR 19  in which R 19  and R 20  are identical or different and are selected from hydrogen or lower alkyl;  
 
 
 *represents the carbon atom which is shared between the cycle A and the backbone cycle containing X and/or Y;  
 each carbon atom of the cycle A is unsubstituted or substituted with 1 or 2 groups, identical or different, selected from lower alkyl optionally substituted with OR 21 , NR 21 R 22 , COOR 21  or CONR 21 R 22 , lower haloalkyl, CN, F, ═O, SO 2 NR 19 R 20 , OR 19 , SR 19 , C(═O)OR 19 , C(═O)NR 19 R 20  or NR 19 R 20  in which R 19  and R 20  are identical or different and are selected from hydrogen or lower alkyl optionally substituted with OR 21 , NR 21 R 22 , COOR 21  or CONR 21 R 22  in which R 21  and R 22  are identical or different and are selected from hydrogen or lower alkyl, and, 
 R 19  and R 20 , and/or, R 21  and R 22 , together with the nitrogen atom to which they are linked, can form a 4- to 8-membered heterocyclic ring;  
 
 2 atoms of the cycle A, which are not adjacent, may be linked by a 2, 3 or 4 carbon atom chain which may be interrupted with 1 heteroatom chosen from O, S or N;  
 provided that not more than two of the groups A 1 , A 2 , A 3 , A 4 , A 5  and A 6  simultaneously represent a heteroatom;  
 of their tautomeric forms, their racemic forms or their isomers and of their pharmaceutically acceptable derivatives,  
 for the preparation of a medicament for the prevention or the treatment of disorders for which therapy by a PDE7 inhibitor is relevant.  
 
     
     
         27 . Use according to  claim 26  in which said compound is a compound of formula (I) in which X 1 , X 2 , X 3 , X 4 , X, Y, Z and A are as defined in  claim 25 .  
     
     
         28 . Use of a compound according to any one of  claims 1  to  23  for the preparation of a medicament for the prevention or the treatment of disorders for which therapy by a PDE7 inhibitor is relevant.  
     
     
         29 . Use according to any one of  claims 26  to  28  in which said disorder is selected from T-cell-related diseases, autoimmune diseases, osteoarthritis, multiple sclerosis, osteoporosis, chronic obstructive pulmonary disease, asthma, cancer, acquired immune deficiency syndrome, allergy or inflammatory bowel disease.  
     
     
         30 . A method for the prevention or the treatment of a disorder for which a therapy by a PDE7 inhibitor is relevant, comprising administering to a mammal in need thereof, an effective amount of a compound according to any one of  claims 1  to  23 .  
     
     
         31 . A method according to  claim 30  in which said disorder is selected from T-cell-related diseases, autoimmune diseases, osteoarthritis, multiple sclerosis, osteoporosis, chronic obstructive pulmonary disease, asthma, cancer, acquired immune deficiency syndrome, allergy or inflammatory bowel disease.  
     
     
         32 . A method for preparing a compound of formula (I) according to  claim 1  in which Y is N—R 12 , X is N—R 9  and Z is O comprising reacting a substituted urea of formula  
       
         
           
           
               
               
           
         
         in which X 1 , X 2 , X 3 , X 4 , R 9  and R 12  are as defined  claim 1 , with a cyclic ketone of formula  
         
           
             
             
                 
                 
             
           
         
          in which A is as defined in  claim 1 , to obtain said compound of formula (I) and isolating said compound of formula (I).  
       
     
     
         33 . A method for preparing a compound of formula (I) according to  claim 1  in which X 1 , X 2 , X 3 , X 4 , A and R 9  are as defined in  claim 1  and Y is O, S or NH, said method comprising, 
 (1) reacting a compound (2a)  
                     
  in which X 1 , X 2 , X 3 , X 4  are as defined in  claim 1  and Y is O, S or NH, with a group P-LG in which P is a protecting group and LG is a leaving group to obtain compound (2b)  
                     
 (2) reacting compound (2b) with R-Li in which R is lower alkyl and then with a ketone of formula  
                     
  in which A is as defined in  claim 1  to obtain compound (2c)  
                     
 (3) removing the protecting group P either under reductive conditions, acidic condition or basic condition to obtain compound ( 2 d)  
                     
 (4) reacting compound (2d) with a group O═C═N—R 9  in which R 9  is as defined in  claim 1  to obtain compound (2e)  
                     
 (5) reacting compound (2e) with an acid to obtain said compound of formula (I),  
 (6) isolating said compound of formula (I).