Synthesis and Preliminary Biological Properties Assessment of Novel 2-S-, 4-, 5-Substituted and Bicyclic Derivatives of 6-Methylpyrimidine-4-ol
作者:Aleksandr P. Yengoyan、Zhermen A. Azaryan、Vergush A. Pivazyan、Emma A. Ghazaryan、Rafael A. Tamazyan、Armen G. Ayvazyan
DOI:10.2174/1570178616666190411110415
日期:2020.1.7
and 4-aminotriazolylpyrimidines were synthesized from the quaternary ammonium salt of pyrimidine and 4-chloro-substituted 2-thiomethyl-6-methylpyrimidine, respectively. The reaction of potassium salt of 1-methyl-6-oxo-1,6-dihydropyridazin-3-ole with ethyl 2-chloro-3-oxobutanoate and subsequent treatment with thiourea led to 6-((4-hydroxy-2-mercapto-6-methylpyrimidin-5-yl)oxy)-2- methylpyridazin-3 (2H)-one
Synthesis of novel 1,3-substituted 1<i>H</i>-[1,2,4]-triazole-3-thiol derivatives
作者:Karine A. Eliazyan、Lusya V. Shahbazyan、Vergine A. Pivazyan、Emma A. Ghazaryan、Aleksandr P. Yengoyan
DOI:10.1002/hc.20565
日期:——
By means of regioselective S-alkylation of 1H-1,2,4-triazole-3-thiol (1), a series of S-substituted derivatives 2a-j were synthesized. In certain conditions, the reaction of 2 with arylsulfochlorides, arylisocyanates, and quaternary ammonium salts of azines corresponding compounds were obtained 1-arylsulfonyl- (3a-d), 1-arylcarbonamido- (4a,b), and 1-azinyl-1,2,4- (6a-p) triazoles. Structures of compounds