Tetraazaacenaphthene, tetraazaphenalene and 1,3,4-thiadiazole derivatives as potential leishmanicides
摘要:
Synthesis and leishmanicidal activity of 1,3-dithiolanes (2a,b), 1,3-dithiane (2c), tetraazaacenaphthene (4a-h) and tetraazaphenalene imidazolidin-2-ylidene (5a,6a,b) and hexahydropyrimidin-2-ylidene (5b) derivatives are described. Some of the screened compounds have demonstrated significant leishmanicidal activity in in vitro and in vivo evaluations. (C) 1997 Elsevier Science Ltd.
Regioselective Synthesis of Heterocyclic Ketene N,N-, N,O- and N,S-acetals in Aqueous Medium
作者:Langpoklakpam Gellina Chanu、Okram Mukherjee Singh、Sang-Hun Jang、Sang-Gyeong Lee
DOI:10.5012/bkcs.2010.31.04.859
日期:2010.4.20
The reactions of ketene dithioacetals with ethane-1,2-diamine, propane-1,3-diamine, 2-aminoethanol, 3-aminopropanol, and 2-aminoethanethiol in ordinary water in the absence of any acid/base catalyst afforded the heterocyclic ketene N,N-, N,O- and N,S-acetals in good yields.