ethyl N-tert-butoxycarbonyl-4-(3-methanesulfonylaminobenzyl)piperidine-4-carboxylate 以
ethyl N-tert-butoxycarbonyl-4-(3-nitrobenzyl)piperidine-4-carboxylate 为溶剂,
生成 ethyl 1-[3-(4-cyanobenzyl)-2-methyl-3H-imidazol-4-ylmethyl]-4-(3-methanesulfonylaminobenzyl)piperidine-4-carboxylate