3-羰基-3,4-二氢-2H-1,4-苯并噻嗪-6-羧酸甲酯;3-羰基-3,4-二氢-2氢-1,4-苯并噻嗪-6-羧酸甲酯;
Methyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate;methyl-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxylate;Methyl 3-Oxo-2H-1,4-benzothiazine-6-carboxylate;
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