上游原料
3-nitro-4-chlorobenzoic acid; 4-chloro-3-nitrobenzoic acid2,3-dichloropyrazine3-amino-4-sulfanylbenzoic acidmethyl 3-amino-4-sulfanylbenzoatemethyl 10H-pyrazino[2,3-b][1,4]benzothiazine-8-carboxylate10H-pyrazino[2,3-b][1,4]benzothiazin-8-ylmethanol8-(chloromethyl)-10H-pyrazino[2,3-b][1,4]benzothiazine1-Benzyl-4-piperidinylamine; 1-Benzyl-4-piperidinamine; 4-Amino-1-benzylpiperidine8-(chloromethyl)-10H-pyrazino[2,3-b][1,4]benzothiazineN'-(1-benzyl-4-piperidinyl)-N,N-dimethylsulfamideN,N-dimethyl-N'-(4-piperidinyl)sulfamide