5,8-Dimethoxy-2-(dimethylamino)-4-oxo-4H-1-benzothiopyran 1,1-dioxide
5,8-Dimethoxy-2-(dimethylamino)-4-oxo-4H-1-benzothiopyran 1,1-dioxide ??
??
5,8-Dimethoxy-2-(dimethylamino)-4-oxo-4H-1-benzothiopyran 1,1-dioxide C??? ??, ??, ??
5,8-Dimethoxy-2-(dimethylamino)-4-oxo-4H-1-benzothiopyran 1,1-dioxide ?? ?? ? ???
???
?? ??
5,8-Dimethoxy-2-(dimethylamino)-4-oxo-4H-1-benzothiopyran 1,1-dioxide ?? ??
???( 0)?? ??