Synthesis of novel 7-imino-2-thioxo-3,7-dihydro-2H-thiazolo [4,5-d] pyrimidine derivatives as adenosine A2A receptor antagonists
摘要:
Novel bicyclic thiazolopyrimidine compounds (15-26) were synthesized to develop adenosine A(2A) receptor (A(2A)R) antagonist for the treatment of Parkinson's disease (PD). The binding affinity of the compounds (15-26) with A(2A)R was evaluated using radioligand binding assay on isolated membranes from stably transfected HEK293 cells. Selectivity of the compounds towards A(2A)R was assessed by comparing their binding affinities with A(1) receptors (A(1)R). cAMP concentrations were measured from HEK293 cells treated with compounds (15-26) as compared to NECA (A(2A)R agonist). The compound (16) possessed strongest A(2A)R binding affinity (K-i value = 0.0038 nM) and selectivity (737-fold) versus A(1)R. Decrease in A(2A)R-coupled release of endogenous cAMP from HEK293 cells treated with compounds (15-26) is evocative of their potential as A(2A)R antagonist. (C) 2009 Elsevier Ltd. All rights reserved.
[EN] A NOVEL 3-SUBSTITUTED 7-IMINO-2-THIOXO-3, 7-DIHYDRO-2H-THIAZOLO [4,5-DI PYRIMIDIN-6-YL - AND PROCESS FOR PREPARATION THEREOF<br/>[FR] (7-IMINO-2-THIOXO-3,7-DIHYDRO-2H-THIAZOLO[4,5-D]PYRIMIDIN-6-YLE SUBSTITUÉ EN POSITION 3 INÉDIT ET SON PROCÉDÉ DE PRÉPARATION
申请人:COUNCIL SCIENT IND RES
公开号:WO2011061754A9
公开(公告)日:2012-07-05
A NOVEL 3-SUBSTITUTED 7-IMINO-2-THIOXO-3, 7-DIHYDRO-2H-THIAZOLO [4,5-DI PYRIMIDIN-6-YL - AND PROCESS FOR PREPARATION THEREOF