86970-62-9 Carbamic acid, (5-(((dimethylamino)methylene)amino)-3-phenyl-2H-pyrido(4,3-b)-1,4-oxazin-7-yl)-, ethyl ester Ethyl (5-(((dimethylamino)methylene)amino)-3-phenyl-2H-pyrido(4,3-b)-1,4-oxazin-7-yl)carbamate