SYNTHESIS OF SOME NEW 1,2,4-TRIAZOLO[3,4-<i>b</i>]-THIADIAZOLE DERIVATIVES AS POSSIBLE ANTICANCER AGENTS
作者:K. Subrahmanya Bhat、D. Jagadeesh Prasad、Boja Poojary、B. Shivarama Holla
DOI:10.1080/10426500490464186
日期:2004.8
derivatives, whereas with α-bromoketones gives a six-membered heterocycle. In this article we report the synthesis of a series of 1,2,4-triazolo[3,4-b]thiadiazoles 5 starting from 4-amino-3-substituted-5-mercapto-1,2,4-triazoles 3 and fluorobenzoic acids 4 using phosphorous oxychloride as cyclizing agent. Fourteen of the newly synthesized compounds were screened for anticancer properties. Four among them
3-Substituted-4-amino-5-mercapto-1,2,4-triazoles 是用于构建各种生物活性杂环的通用合成子。它们与羧酸的环化得到稠合的五元衍生物,而与 α-溴酮环化得到六元杂环。在本文中,我们报道了一系列 1,2,4-三唑并 [3,4-b] 噻二唑 5 的合成,这些化合物以 4-氨基-3-取代-5-巯基-1,2,4-三唑 3 和以三氯氧化磷为环化剂制备氟苯甲酸4。筛选了 14 种新合成的化合物的抗癌特性。其中四个显示出体外抗癌活性。