7-chloro-2-ethyl-4H-1,4-benzothiazin-3-one

Ethyl 6-chloro-1,3-benzothiazole-2-carboxylate

1-(6-氯-1,3-苯并噻唑-2-基)乙醇

ethyl 7-chloro-3-methyl-4H-1,4-benzothiazine-2-carboxylate