A Cs2CO3-mediated simple and selective method for the alkylation and acylation of 3,4-dihydropyrimidin-2(1H)-thiones
作者:Salil Putatunda、Arijit Chakraborty
DOI:10.1016/j.crci.2013.12.006
日期:2014.10
excellent yields in the presence of Cs2CO3, a mild base. The method evidences a selective S-alkylation when using acyl chlorides as efficient acylating agents at room temperature on the 2-thioxo-dihydropyrimidone moiety. A possible mechanistic interpretation of the different selectivities in case of alkylation and acylation was done with the help of a geometry optimization process.
Substituted pyrimidines useful as calcium channel blockers
申请人:Merck & Co., Inc.
公开号:US04675321A1
公开(公告)日:1987-06-23
Pharmaceutical compositions of specific substituted pyrimidines and methods of treatment of certain cardiovascular disorders are disclosed. Also disclosed are novel substituted acrylated pyrimidines which are useful as calcium channel blockers.