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
收藏
页码：963 / 965
页数：3
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