一种三组分系统,可通过1,3-二羰基化合物,醛和5-氨基[1,2,4]的缩合一锅合成[1,2,4]三唑并[1,5- a ]嘧啶衍生物据报道,通过简单,有效和环保的方法,乙醇中无]]三唑的收率很高。本文报道的方法被认为是绿色工艺。与传统报道的方法相比,该方法具有以下优点:后处理步骤简单,产率极佳,对环境的污染最小,反应时间短。
4-(Het)aryl-4,7-dihydroazolopyrimidines and Their Tuberculostatic Activity
作者:Yu. A. Titova、E. S. Filatova、O. V. Fedorova、G. L. Rusinov、V. N. Charushin
DOI:10.1134/s107042801906006x
日期:2019.6
Structural analogs of a promising antituberculous agent, ethyl 5-methyl-7-(thiophen-2-yl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate have been synthesized by three-component condensations of various aromatic or hetaromatic aldehydes with several beta-dicarbonyl compounds (CH acids) and 1H-1,2,4-triazol-5-amine or 1H-pyrazol-5-amine. The obtained compounds have been evaluated for tuberculostatic activity, and structure-activity relations have been analyzed.