The present invention relates to a process for the preparation of enantiomerically pure (S)-3-methyl-amino-1-(thien-2-yl)propan-1-ol of the formula II-S
by obtainment of (S)-3-hydroxy-3-thien-2-ylpropio-nitrile from its enantiomer mixture with the R isomer and the subsequent reaction of (S)-3-hydroxy-3-thien-2-ylpropionitrile with hydrogen and methylamine in the presence of a catalyst to give II-S.
本发明涉及一种制备式 II-S 的对映体纯的 (S)-3- 甲基
氨基-1-(
噻吩-2-基)丙-1-醇的工艺。
方法是从(S)-3-羟基-3-
噻吩-2-基
丙腈与 R 异构体的对映体混合物中获得(S)-3-羟基-3-
噻吩-2-基
丙腈,然后在催化剂存在下使(S)-3-羟基-3-
噻吩-2-基
丙腈与氢和
甲胺反应得到 II-S。