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