It is an object of the present invention to provide a process for producing an pyrrolidine derivative of general formula (2) or a salt thereof in a simple and economical manner and with good productivity and high yields. The present invention consists in a process for producing a pyrrolidine derivative of the general formula (2) or a salt thereof which comprises subjecting a compound of the general formula (1) to hydrogenolysis using a metal catalyst in the presence of at least one protic acid selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, p-toluenesulfonic acid, methanesulfonic acid, acetic acid, n-butyric acid, trifluoroacetic acid and oxalic acid. ##STR1## R represents a 1-cyano-1,1-diphenylmethyl, 1-carbamoyl-1,1-diphenylmethyl, n-butyryloxy, methanesulfonyloxy or p-toluenesulfonyloxy group.
本发明的目的是以简单经济的方式,高效率高产率地生产通式(2)的
吡咯烷衍
生物或其盐。本发明涉及一种生产通式(2)的
吡咯烷衍
生物或其盐的方法,包括将通式(1)的化合物在至少选自氢
氯酸、
硫酸、
磷酸、
对甲苯磺酸、
甲磺酸、
乙酸、正
丁酸、
三氟乙酸和
草酸的脱氢催化剂存在下,经过氢解作用。其中,R代表1-
氰基-1,1-二苯甲基、1-
氨基甲酰-1,1-二苯甲基、正丁酰氧基、
甲磺酰氧基或对
甲苯磺酰氧基基团。