N-(1S-cyanomethylcarbamoyl-3-methylbutyl)-4-(2-piperazin-1-ylthiazol-4-yl)benzamide 、
ethyl chloroformate 生成 ethyl 4-{4-[4-(1S-cyanomethylcarbamoyl-3-methylbutylcarbamoyl)phenyl]thiazol-2-yl}-1piperazine-1-carboxylate 、
Ethyl 4-{4-[4-(1S-cyanomethylcarbamoyl-3-methylbutylcarbamoyl)phenyl]thiazol-2-yl } piperazine-1-carboxylate