Convenient one-pot access to novel densely functionalized pyrano[2,3-d][1,3,4]thiadiazolo[3,2-a]pyrimidines via three component reaction
作者:Maryam Akhavan、Abbas Ali Esmaeili、Mahdieh Zangouei、Joel T. Mague
DOI:10.1007/s11164-017-2904-9
日期:2017.8
efficient isocyanide-based three component method is developed for the synthesis of the novel substituted pyrano[2,3- d ][1,3,4]thiadiazolo[3,2- a ]pyrimidine system, having both the biologically active pyranopyrimidine and thiadiazolopyrimidine scaffolds, from the readily attainable reaction of 7-hydroxy-2-phenyl-5 H -[1,3,4]thiadiazolo[3,2- a ]pyrimidine-5-one, isocyanides, and dialkylacetylenedicarboxylates
摘要 在这项工作中,开发了一种高效的基于异氰化物的三组分方法,用于合成新型取代的吡喃并[2,3- d ] [1,3,4]噻二唑并[3,2- a ]嘧啶体系, 7-羟基-2-苯基-5 H- [1,3,4]噻二唑并[3,2 - a ]嘧啶-5-酮,异氰酸酯和二烷基乙酰二羧酸酯的反应容易获得的具有生物活性的吡喃嘧啶和噻二唑并 嘧啶骨架 。该方法的主要优点是反应产率高,反应条件温和,原子经济性高和无催化剂反应。 图形概要