Thiazole and Thiadiazole Analogues as a Novel Class of Adenosine Receptor Antagonists
作者:Jacqueline E. van Muijlwijk-Koezen、Hendrik Timmerman、Roeland C. Vollinga、Jacobien Frijtag von Drabbe Künzel、Miriam de Groote、Sven Visser、Adriaan P. IJzerman
DOI:10.1021/jm0003945
日期:2001.3.1
on a template approach. Structure-affinityrelationships revealed insights for extended knowledge of the receptor-ligand interaction. We replaced the bicyclic heterocyclic ring system of earlier described isoquinoline and quinazoline adenosine A(3) receptor ligands by several monocyclic rings and investigated the influence thereof on adenosine receptor affinity. The thiazole or thiadiazole derivatives
FLT3 and PDGFR tyrosine kinases are important targets for therapy of different types of leukemia. Several FLT3/PDGFR inhibitors are currently under clinical investigation for combination with standard therapy for treatment of acute myeloid leukemia (AML), however these agents only induce partial remission and development of resistance has been reported. In this work we describe the identification of potent and novel dual FLT3/PDGFR inhibitors that resulted from our efforts to screen a library of 25,607 small molecules against the FLT3 dependent cell line MOLM-13 and the PDGFR dependent cell line EOL-1. This effort led to the identification of five compounds that were confirmed to be active on additional FLT3 dependent cell lines (cellular EC50 values between 35 and 700 nM), while having no significant effect on 24 other tyrosine kinases. (c) 2013 Elsevier Masson SAS. All rights reserved.