PREPARATION OF NOVEL TRICYCLIC RING-SYSTEMS CONTAINING THE PYRIDAZINONE RING

被引:22
作者
YAMASAKI, T
KAWAMINAMI, E
UCHIMURA, F
OKAMOTO, Y
OKAWARA, T
FURUKAWA, M
机构
[1] Faculty of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862, Oe‐hon‐machi
关键词
D O I
10.1002/jhet.5570290426
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Novel tricyclic ring systems, imidazo[3,4-d]pyridazino[4,5-b]1,4]thiazines 3, imidazo[2,1-b]pyridazino[4,5-e][1,3,4]thiadiazines 15 and 18 were prepared by the reaction of 5-amino-4-chloropyridazin-3(2H)-ones 1 and 5(4)-(I-methylhydrazino)-4(5)-chloropyridazin-3(2H)-ones 13 (16) with isothiocyanates 2 and 7.
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页码:825 / 829
页数:5
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