申请人:Warner-Lambert Company
公开号:US05198548A1
公开(公告)日:1993-03-30
A process for the preparation of D(-) and L(+)-3,3-diphenylalanine and D(-) and L(+)-substituted 3,3-diphenylalanines is described where N-protected DL-3,3-diphenylalanine or N-protected-DL-substituted 3,3-diphenylalanine are treated with (-)cinchonidine and the resulting salt resolved into the desired enantiomers, as well as derivatives thereof and valuable intermediates used in the process.
描述了一种制备D(-)和L(+)-3,3-二苯丙氨酸以及D(-)和L(+)-取代的3,3-二苯丙氨酸的方法,其中N-保护的DL-3,3-二苯丙氨酸或N-保护的DL-取代的3,3-二苯丙氨酸经(-)奎奴啶处理,生成的盐分离成所需的对映体,以及在该过程中使用的衍生物和有价值的中间体。