ethyl 2-(4-chloro-3-nitrophenyl)-4-methylthiazole-5-carboxylate 、
ethyl 4-methyl-2-(3-nitro-4-piperidinophenyl)-5-thiazolecarboxylate 以
哌啶 为溶剂,
以to give 135 mg of 4-methyl-2-(3-nitro-4-piperidinophenyl)-5-thiazolecarboxylic acid (yield: 63%)的产率得到4-methyl-2-(3-nitro-4-piperidinophenyl)-5-thiazolecarboxylic acid