Synthesis of 5-(5-amino-1H-pyrazol-1-yl)-1,2,3-thiadiazole-4-carboxylic acid ethyl esters and their cyclization into pyrazolo[1,5-a][1,2,3]thiadiazolo[4,5-e]pyrimidin-4(5H)-ones
作者:Olga А. Vysokova、Tatiana A. Kalinina、Pavel А. Slepukhin、Tatiana А. Pospelova、Konstantin L. Obydennov、Tatiana V. Glukhareva
DOI:10.1007/s10593-018-2396-6
日期:2018.11
A method for the synthesis of novel 1H-pyrazol-1-yl-1,2,3-thiadiazole derivatives has been proposed and their intramolecular cyclization to pyrazolo[1,5-a][1,2,3]thiadiazolo[4,5-e]pyrimidin-4(5H)-ones, previously unknown fused tricyclic heterocycles, has been studied.
提出了一种新型的1 H-吡唑-1-基-1,2,3-噻二唑衍生物的合成方法,并将其分子内环化为吡唑并[1,5- a ] [1,2,3]噻二唑[4]。已经研究了以前未知的稠合的5-,5 - e ]嘧啶-4(5 H)-1杂环。