4-ethyl-6-(N-hydroxy-C-methylcarbonimidoyl)-1,4-benzothiazin-3-one

S-(2-nitro-4-acetylphenyl)thioglycolic acid

2-[[[1-(4-乙基-3,4-二氢-3-氧代-2H-1,4-苯并噻嗪-6-基)亚乙基]氨基]氧基]-乙酸乙酯