Synthesis of pyrido[3′,2′:4,5]thieno[2,3-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one derivatives

被引：41

作者：

Davoodnia, Abolghasem ^{[1
]}

Bakavoli, Mehdi ^{[1
]}

Mohseni, Sharare ^{[1
]}

Tavakoli-Hoseini, Niloofar ^{[1
]}

机构：

[1] Islamic Azad Univ, Dept Chem, Sch Sci, Mashhad Branch, Mashhad 91735413, Iran

来源：

MONATSHEFTE FUR CHEMIE | 2008年 / 139卷 / 08期

关键词：

pyridothienotriazolopyrimidine; isothiocyanates; hydrazine hydrate; triethylorthoesters; cyclocondensation;

D O I：

10.1007/s00706-007-0844-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Some new pyrido[3',2':4,5]thieno[2,3-e]-[1,2,4]triazolo[4,3-a] pyrimidin-5(4H)-ones were prepared through heterocyclization of ethyl 3-aminothieno[2,3-b]pyridine-2-carboxylate with phenyl or ethyl isothiocyanate followed by nucleophilic displacement with hydrazine, and finally cyclocondensation with orthoesters.

引用

页码：963 / 965

页数：3

共 19 条

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