Russian Journal of Organic Chemistry p. 916 - 921 (2005)
Update date:2022-07-29
Topics:
Tyurin
Vorob'ev
Minyaeva
Krasnikov
Mezheritskii
Formimidic acid esters derived from 1-substituted 5-aminopyrazole-4- carbonitriles reacted with carboxylic acid hydrazides on heating to give 2,7-disubstituted pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidine derivatives as a result of double heterocycliza
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