1-{3-cyano-5-(ethoxycarbonyl)-6-[(2-oxo-piperidin-1-yl)methyl]pyridin-2-yl}piperidine-4-carboxylic acid 、
1-[4-(三氟甲基)苯基]甲烷磺酰胺 以to give ethyl 5-cyano-2-[(2-oxopiperidin-1-yl)methyl]-6-[4-({[4-(trifluoromethyl)benzyl]sulfonyl}carbamoyl)piperidin-1-yl]nicotinate的产率得到ethyl 5-cyano-2-[(2-oxopiperidin-1-yl)methyl]-6-[4-({[4-(trifluoromethyl)benzyl]sulfonyl}carbamoyl)piperidin-1-yl]nicotinate