1-{3-cyano-5-(ethoxycarbonyl)-6-[(2-oxo-pyrrolidin-1-yl)methyl]pyridin-2-yl}piperidine-4-carboxylic acid 、
N-(1-phenyl)sulfamide 以to give Ethyl 6-{4-[(anilinosulfonyl)carbamoyl]piperidin-1-yl}-5-cyano-2-[(2-oxopyrrolidin-1-yl)methyl]nicotinate的产率得到ethyl 6-{4-[(anilinosulfonyl)carbamoyl]piperidin-1-yl}-5-cyano-2-[(2-oxopyrrolidin-1-yl)methyl]nicotinate