1-(3-cyano-5-(ethoxycarbonyl)-6-methylpyridin-2-yl)piperidine-4-carboxylic acid 、 (5-Fluoro-2-methylphenyl)methanesulfonamide 以to give ethyl 5-cyano-6-(4-{[(5-fluoro-2-methylbenzyl)sulfonyl]carbamoyl}piperidin-1-yl)-2-methylnicotinate的产率得到ethyl 5-cyano-6-(4-{[(5-fluoro-2-methylbenzyl)sulfonyl]carbamoyl}piperidin-1-yl)-2-methylnicotinate