Novel synthesis approach and antiplatelet activity evaluation of 6-alkylamino-2,4-dialkyl(aryl)thiopyrimidines
作者:Guocheng Liu、Jiaxi Xu、Ki Chul Park、Ning Chen、Si Zhang、Zhongren Ding、Feng Wang、Hongguang Du
DOI:10.1016/j.tet.2011.05.056
日期:2011.7
A new and efficient procedure has been designed for the preparation of 6-alkylamino-2,4-dialkyl(aryl) thiopyrimidines. The first alkylthio group was introduced into the pyrimidine ring by S-alkylation. The introduction of the second one was successfully achieved using the diazotization-alkylthionation method to afford 2,4-dialkyl(aryl)thio-6-chloropyrimidines. Subsequent nucleophilic displacement by the corresponding amines conveniently gave a series of the target compounds. Thus, the two same or different alkylthio groups were easily introduced into the pyrimidine ring through the two different approaches. The human anti-platelet aggregation activity of the newly synthesized compounds is also described. (C) 2011 Elsevier Ltd. All rights reserved.