1-{3-chloro-5-(ethoxycarbonyl)-6-[(2-oxopyrrolidin-1-yl)methyl]pyridin-2-yl}piperidine-4-carboxylic acid 、
[甲基(氨磺酰)氨基]苯 以to give ethyl 5-chloro-6-[4-({[methyl(phenyl)amino]sulfonyl}carbamoyl)piperidin-1-yl]-2-[(2-oxopyrrolidin-1-yl)methyl]nicotinate的产率得到ethyl 5-chloro-6-[4-({[methyl(phenyl)amino]sulfonyl}carbamoyl)piperidin-1-yl]-2-[(2-oxopyrrolidin-1-yl)methyl]nicotinate