ethyl 2-(1H-benzotriazol-1-yloxy)-6-{4-[(benzylsulfonyl)carbamoyl]piperidin-1-yl}-5-cyano-nicotinate 、
巯基乙酸乙酯 以to give ethyl 6-{4-[(benzylsulfonyl)carbamoyl]piperidin-1-yl}-5-cyano-2-[(2-ethoxy-2-oxoethyl)thio]nicotinate as a white solid的产率得到ethyl 6-{4-[(benzylsulfonyl)carbamoyl]piperidin-1-yl}-5-cyano-2-[(2-ethoxy-2-oxoethyl)thio]nicotinate