US2020239484A1PendingUtilityA1

Method for preparing pyrrolo[3,2,-d]pyrimidine compound, and intermediates thereof

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Assignee: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO LTDPriority: Feb 5, 2016Filed: Apr 13, 2020Published: Jul 30, 2020
Est. expiryFeb 5, 2036(~9.5 yrs left)· nominal 20-yr term from priority
Inventors:Zhaozhong DingFei SunYinghu HuYilong ZhouRui ZhaoLing Yang
C07D 487/00C07D 487/04
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Claims

Abstract

The present invention relates to a method for preparing a pyrrolo[3,2-d]pyrimidine compound (the compound represented by formula I), and corresponding intermediates.

Claims

exact text as granted — not AI-modified
1 . A compound of formula VI: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  and R 2  are independently selected from the group consisting of C 1-4  alkyl, or 
         R 1  and R 2  together with the N atom attached thereto form 4-8 membered heterocycloalkyl, wherein the heterocycloalkyl is optionally substituted with one or more substituents independently selected from hydroxyl, halogen, C 1-4  alkyl and C 1-4  alkoxy. 
       
     
     
         2 . The compound of formula VI according to  claim 1 , wherein R 1  and R 2  are independently selected from the group consisting of C 1-4  alkyl. 
     
     
         3 . The compound of formula VI according to  claim 1 , wherein R 1  and R 2  together with the N atom attached thereto form 4-8 membered heterocycloalkyl, wherein the heterocycloalkyl is optionally substituted with one or more substituents independently selected from hydroxyl, halogen, C 1-4  alkyl and C 1-4  alkoxy. 
     
     
         4 . The compound of formula VI according to  claim 1 , wherein NR 1 R 2  of formula VI is selected from the group consisting of 
       
         
           
           
               
               
           
         
       
     
     
         5 . The compound of formula VI according to  claim 1 , selected from:

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