Tert-butyl 4-[(3-ethoxycarbonyl-5-phenylthiophen-2-yl)amino]piperidine-1-carboxylate 、 4-methylcyclohexanecarbonyl chloride 在
吡啶 作用下,
以14%的产率得到2-([(4-methylcyclohexyl)carbonyl]{1-[(4-methylcyclohexyl)carbonyl]piperidin-4-yl}-amino)-5-phenylthiophen-3-carboxylic acid ethyl ester