申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0174375A1
公开(公告)日:1986-03-19
A process for preparing N-acylphenylalanines represented by formula (II): wherein R3 and R4 each represents a hydrogen atom, an alkyl group, an alkoxy group, a phenoxy group, a hydroxy group or a methylenedioxy group, R represents a methyl group or a phenyl group, by catalytic reduction of an N-acyl-p-phenylserine represented by formula (I): wherein R1 and R2 each represents a hydrogen atom, an alkyl group, an alkoxy group, a phenoxy group, a benzyloxy group or a methylenedioxy group, and R is as defined above, in a solvent in the presence of a reducing catalyst or both a reducing catalyst and an acid.
一种通过催化还原式(I)代表的N-酰基-苯基丝氨酸制备式(II)代表的N-酰基苯丙氨酸的工艺: 其中R3和R4各自代表氢原子、烷基、烷氧基、苯氧基、羟基或亚甲基二氧基,R代表甲基或苯基:其中 R1 和 R2 分别代表氢原子、烷基、烷氧基、苯氧基、苄氧基或亚甲基二氧基,R 如上文所定义。