申请人:Araya Ichiro
公开号:US20130217893A1
公开(公告)日:2013-08-22
The present invention provides an inexpensive and industrially advantageous method for producing an optically active form of an anti-(3S,4R)-3-alkylcarbamoyl-4-hydroxypyrrolidine derivative or it's enantiomer, which is a key intermediate for producing a high-quality optically active form of (3R,4S)-3-alkylaminomethyl-4-fluoropyrrolidine or it's enantiomer useful as an intermediate for producing pharmaceuticals.
The present invention relates to a method for producing an optically active anti-(3S,4R)-4-hydroxypyrrolidine-3-carboxamide derivative, or it's enantiomer by carrying out asymmetric hydrogenation using an optically active catalyst of a 4-oxopyrrolidine-3-carboxamide derivative represented by the general formula (I).
[in the formula (I), PG
1
represents a protective group for an amino group, and R
1
represents hydrogen, a C1 to C6 alkyl group which may be substituted, or a C3 to C8 cycloalkyl group which may be substituted].
本发明提供了一种廉价且在工业上具有优势的方法,用于生产抗-(3S,4R)-3-烷基氨甲酰基-4-羟基吡咯烷衍生物或其对映体的光学活性形式,该衍生物是生产高质量光学活性形式的(3R,4S)-3-烷基氨甲基-4-氟吡咯烷或其对映体的关键中间体,可用作生产药物的中间体。本发明涉及一种通过使用由通式(I)表示的4-氧代吡咯烷-3-羧酰胺衍生物的光学活性催化剂进行不对称氢化来生产光学活性的抗-(3S,4R)-4-羟基吡咯烷-3-羧酰胺衍生物或其对映体的方法。【在通式(I)中,PG1代表氨基的保护基,R1代表氢、可被取代的C1至C6烷基或可被取代的C3至C8环烷基】。