PROPANOLAMINE DERIVATIVES, PROCESS FOR PREPARATION OF 3-N-METHYLAMINO-1-(2-THIENYL)-1-PROPANOLS AND PROCESS FOR PREPARATION OF PROPANOLAMINE DERIVATIVES
申请人:Mitsubishi Rayon Co., Ltd.
公开号:EP1506965A1
公开(公告)日:2005-02-16
The present invention provides means for preparing a racemate or an optically active substance (S- or R-isomer) of 3-N-methylamino-1-(2-thienyl)-1-propanol represented by the following general formula (I):
wherein R1 represents any of a hydrogen atom, a C1-8 acyl group, a substituted or substituted C1-8 alkyloxycarbonyl group and a substituted or substituted phenyloxycarbonyl group and R2 represents any of a hydrogen atom, a C1-8 alkyl group, a substituted or substituted benzyl group, a C1-8 acyl group, a substituted or substituted C1-8 alkyloxycarbonyl group and a substituted or substituted phenyloxycarbonyl group, with the exception that R1 is a hydrogen atom and R2 is a methyl group or a hydrogen atom, in a simple manner at low cost and in high yield.
本发明提供了制备3-N-甲基氨基-1-(2-噻吩基)-1-丙醇的外消旋物或光学活性物质(S-或R-异构体)的方法,其通式(I)如下:
其中 R1 代表氢原子、C1-8 乙酰基、取代或被取代的 C1-8 烷氧羰基和取代或被取代的苯氧羰基中的任一基团,R2 代表氢原子、C1-8 烷基、取代或被取代的苄基、C1-8 乙酰基、取代或被取代的 C1-8 烷氧羰基和取代或被取代的苯氧羰基中的任一基团,但 R1 为氢原子,R2 为甲基或氢原子的情况除外。