Synthesis of 9-methyl-1H-[1,4]thiazino[3,2-g]quinoline-2,5,10(3H)-trione, the B,C,D ring core of the shermilamine alkaloids
作者:Norman O. Townsend、Yvette A. Jackson
DOI:10.1039/b307124c
日期:——
Synthesis of 9-methyl-1H-[1,4]thiazino[3,2-g]quinoline-2,5,10(3H)-trione (4), from N-(4-bromo-2,5-dimethoxyphenyl)acetamide (23) is described. Oxidative cyclisation of 2,2'-disulfanediylbis[N-(2,5-dimethoxyphenyl)acetamide] (19) to 5,8-dimethoxy-2H-1,4-benzothiazin-3(4H)-one (7b) is also reported.
由N-(4-溴-2,5-二甲氧基苯基)合成9-甲基-1H- [1,4]噻嗪并[3,2-g]喹啉-2,5,10(3H)-三酮(4)描述了乙酰胺(23)。2,2'-二硫代二烷基双[N-(2,5-二甲氧基苯基)乙酰胺](19)的氧化环化为5,8-二甲氧基-2H-1,4-苯并噻嗪-3(4H)-一个(7b)报告。