Disclosed is a method of obtaining (S)-(-)-3-(1-methyl-2-pyrrolidinyl)-2-pyridone (2) and (R)-(+)-3-(1-methyl-2-pyrrolidinyl)-2-pyridone (3) by resolving a racemic mixture of the compounds (2) and (3). More specifically, disclosed is a method of obtaining the optically active nicotine derivatives (2) and (3) shown below, which comprises steps of binding (.+-.)-3-(1-methyl-2-pyrrolidinyl)-2-pyridone to a sugar derivative, resolving the obtained compound into two types of stereoisomers, and treating them under an acidic condition. ##STR1##
本发明公开了一种通过分离混合物(2)和(3)的手性异构体来获得(S)-(-)-3-(1-甲基-2-
吡咯烷基)-2-
吡啶酮(2)和(R)-(+)-3-(1-甲基-2-
吡咯烷基)-2-
吡啶酮(3)的方法。更具体地,本发明公开了一种获得如下光学活性
尼古丁衍
生物(2)和(3)的方法,该方法包括将(.+-.)-3-(1-甲基-2-
吡咯烷基)-2-
吡啶酮与糖衍
生物结合,将所得化合物分离成两种立体异构体,并在酸性条件下处理它们。##STR1##