1-(1-(3-methylpyrrolidin-3-yl)piperidin-4-yl)indolin-2-one 、
氯甲酸乙酯 在
crude product 、
乙腈 、
水 作用下,
以to give the title compound (mixture of racemates) (23.70 mg, 43.8%) as solid的产率得到ethyl 3-methyl-3-(4-(2-oxoindolin-1-yl)piperidin-1-yl)pyrrolidine-1-carboxylate