Synthesis and biological activity of oxindolylidene derivatives of imidazo[4,5-e]thiazolo[3,2-b]-1,2,4-triazin-7-ones and imidazo[4,5-e]thiazolo[2,3-с]-1,2,4-triazin-8-ones

被引：0
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作者：
A. N. Izmest’ev
G. A. Gazieva
A. S. Kulikov
L. V. Anikina
N. G. Kolotyrkina
A. N. Kravchenko
机构：
[1] Russian Academy of Sciences,Zelinskii Institute of Organic Chemistry
[2] Russian Academy of Sciences,Institute of Physiologically Active Substances
来源：
Russian Journal of Organic Chemistry | 2017年 / 53卷
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摘要：
Reactions of 1,3-dialkyl-2-thioxo-1,2,3,3a,9,9a-hexahydroimidazo[4,5-e]thiazolo[3,2-b]-1,2,4-triazin-7(6H)-ones with isatin and its derivatives under base catalysis conditions lead to the corresponding 1,3-dialkyl-6(7)-(2-oxoindolin-3-ylidene)derivatives of 2-thioxo-1,2,3,3a,9,9a-hexahydroimidazo[4,5-e]thiazolo[3,2-b]-1,2,4-triazin-7(6H)-one or 2-thioxo-1,2,3,3a,4,9a-hexahydroimidazo[4,5-e]thiazolo[2,3-c]-1,2,4-triazin-8(7H)-one resulting from the aldol-crotonic condensation and skeletal amidine rearrangement of the thiazolotriazine fragment, depending on the amount of added alkali.
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页码：753 / 763
页数：10
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