1-{3-cyano-5-(ethoxycarbonyl)-6-[(2-oxo-piperidin-1-yl)methyl]pyridin-2-yl}piperidine-4-carboxylic acid   、                                                                                         、                                                                                      
1-(4-甲基环己基)甲磺酰胺                                                                                                                                                                                                                                                                                                          以to give ethyl 5-cyano-6-[4-({[(4-methylcyclohexyl)methyl]sulfonyl}carbamoyl)piperidin-1-yl]-2-[(2-oxopiperidin-1-yl)methyl]nicotinate的产率得到ethyl 5-cyano-6-[4-({[(4-methylcyclohexyl)methyl]sulfonyl}carbamoyl)piperidin-1-yl]-2-[(2-oxo-piperidin-1-yl)methyl]nicotinate