US2016362420A1PendingUtilityA1

Antiparasitic Compositions and Methods Utilizing Substituted 5,5,7,7-Tetramethyl- 4,5,6,7-Tetrahydrothieno[2,3-C]Pyridine Derivatives

Assignee: UNIV TEXASPriority: Jun 10, 2015Filed: Jun 10, 2016Published: Dec 15, 2016
Est. expiryJun 10, 2035(~8.9 yrs left)· nominal 20-yr term from priority
C07F 5/025C07D 495/04C07F 5/04
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Claims

Abstract

The present disclosure relates generally to systems, methods, and compounds for therapeutic use against parasitic infections. More particularly, the disclosure relates to anti-parasitic compounds, and methods for making and for using the anti-parasitic compounds, where the anti-parasitic compounds have the general formula: where X, R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are defined more fully below.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An antiparasitic compound having a general formula of Formula I: 
       
         
           
           
               
               
           
         
         wherein X is O or N; 
         R 1  is a C2 to C4 alky or C2 to C4 cycloalkyl; 
         R 2 , R 3 , R 4 , R 5 , and R 6  are independently selected from hydrogen (H), chlorine (Cl), bromine (Br), fluorine (F), CF 3 , SF 5 , substituted or unsubstituted morpholine, substituted or unsubstituted piperazine, boronic acid (B(OH) 2 ), substituted or unsubstituted 1,3,2-dioxaborlane. 
       
     
     
         2 . The antiparasitic compound of  claim 1 , wherein X is O. 
     
     
         3 . The antiparasitic compound of  claim 2 , wherein R 1  is ethyl, propyl, iso-propyl, cyclopropyl, butyl, isobutyl, sec-butyl or tert-butyl. 
     
     
         4 . The antiparasitic compound of  claim 3 , wherein R 2 , R 3 , R 4 , R 5 , and R 6  are independently selected from H, F, CF 3 , SF 5 , substituted or unsubstituted morpholine, substituted or unsubstituted piperazine, boronic acid (B(OH) 2 ), substituted or unsubstituted 1,3,2-dioxaborlane. 
     
     
         5 . The antiparasitic compound of  claim 4 , wherein R 2  and R 6  are H, and R 3 , R 4 , and R 5  are F. 
     
     
         6 . The antiparasitic compound of  claim 4 , wherein R 2 , R 3 , R 4 , R 5 , and R 6  are fluorine. 
     
     
         7 . The antiparasitic compound of  claim 4 , wherein R 5  is CF 3 , SF 5 , boronic acid, or 4,4,5,5-tetramethyl-1,3,2-dioxaborlane and R 2 , R 3 , R 4 , and R 6  are H. 
     
     
         8 . The antiparasitic compound of  claim 4 , wherein R 2 , R 3 , R 5 , and R 6  are H, and R 4  is morpholine, methyl-piperazine, SF 5 , boronic acid, or 4,4,5,5-tetramethyl-1,3,2-dioxaborlane. 
     
     
         9 . The antiparasitic compound of  claim 3 , wherein R 2 , R 3 , R 4 , R 5 , and R 6  are independently selected from H, Cl, Br, F, and CF 3 . 
     
     
         10 . The antiparasitic compound of  claim 9 , wherein one of R 2 , R 3 , R 4 , R 5 , and R 6  is CF 3 , another of R 2 , R 3 , R 4 , R 5 , and R 6  is Cl or Br, and the remainder of R 2 , R 3 , R 4 , R 5 , and R 6  are H. 
     
     
         11 . The antiparasitic compound of  claim 1 , wherein X is N. 
     
     
         12 . The antiparasitic compound of  claim 11 , wherein R 1  is ethyl, propyl, iso-propyl, cyclopropyl, butyl, isobutyl, sec-butyl or tert-butyl. 
     
     
         13 . The antiparasitic compound of  claim 12 , wherein R 2 , R 3 , R 4 , R 5 , and R 6  are independently selected from H, F, CF 3 , SF 5 , substituted or unsubstituted morpholine, substituted or unsubstituted piperazine, boronic acid (B(OH) 2 ), substituted or unsubstituted 1,3,2-dioxaborlane. 
     
     
         14 . The antiparasitic compound of  claim 13 , wherein R 2  and R 6  are H, and R 3 , R 4 , and R 5  are F. 
     
     
         15 . The antiparasitic compound of  claim 13 , wherein R 2 , R 3 , R 4 , R 5 , and R 6  are fluorine. 
     
     
         16 . The antiparasitic compound of  claim 13 , wherein R 5  is CF 3 , SF 5 , boronic acid, or 4,4,5,5-tetramethyl-1,3,2-dioxaborlane and R 2 , R 3 , R 4 , and R 6  are H. 
     
     
         17 . The antiparasitic compound of  claim 13 , wherein R 2 , R 3 , R 5 , and R 6  are H, and R 4  is morpholine, methyl-piperazine, SF 5 , boronic acid, or 4,4,5,5-tetramethyl-1,3,2-dioxaborlane. 
     
     
         18 . The antiparasitic compound of  claim 12 , wherein R 2 , R 3 , R 4 , R 5 , and R 6  are independently selected from H, Cl, Br, F, and CF 3 . 
     
     
         19 . The antiparasitic compound of  claim 18 , wherein one of R 2 , R 3 , R 4 , R 5 , and R 6  is CF 3 , another of R 2 , R 3 , R 4 , R 5 , and R 6  is Cl or Br, and the remainder of R 2 , R 3 , R 4 , R 5 , and R 6  are H. 
     
     
         20 . A method of treating a parasitic infection comprising administering the antiparasitic compound of  claim 1  to a subject in need thereof. 
     
     
         21 . A method of making the antiparasitic compound of  claim 1  comprising a one-pot synthesis comprising:
 a) mixing 2,2,6,6-tetramethylpiperidine, a 2-cyanoacetate ester comprising R 1 , and sulfur in ethanol under heat to form a reaction solution; and; 
 b) adding 2-R 2 , 3-R 3 , 4-R 4 —, 5-R 5 , 6-R 6 -benzoyl chloride to the reaction solution at room temperature.

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