5-[2-(2-cyano-4-fluoro-pyrrolidin-1-yl)-2-oxo-ethylamino]-5-methyl-hexahydro-cyclopenta[c]pyrrole-2-carboxylic acid dimethylamide 、
对甲苯磺酸 以
二氯甲烷 、
丙酮 为溶剂,
反应 0.5h,
以93%的产率得到5-[2-(2-cyano-4-fluoro-pyrrolidin-1-yl)-2-oxo-ethylamino]-5-methyl-hexahydro-cyclopenta[c]pyrrole-2-carboxylic acid dimethylamide p-toluenesulfonate