申请人:Rhone-Poulenc Rorer S.A.
公开号:US05681970A1
公开(公告)日:1997-10-28
Method for the preparation of .beta.-phenylisoserine derivatives of general formula (I) involving the action of an anhydride and hydrogen with a product of general formula (II). The products of general formula (I) are especially useful in the preparation of taxoids having outstanding antitumour properties. In general formulae (I) and (II), Ar is an aryl radical, Ph is a phenyl radical or an optionally substituted .alpha. or .beta.-naphtyl, R is a hydrogen atom or an alkyl radical optionally substituted by a phenyl radical and R.sub.1 is an optionally substituted phenyl radical or a R.sub.2 --O radical wherein R.sub.2 is an alkyl, alkenyl, cycloalkyl, phenyl or heterocyclyl. ##STR1##
一种制备β-苯基异丝氨酸衍生物的方法,包括使用酸酐和氢与通式(II)的产物作用。通式(I)的产物在制备具有出色抗肿瘤性能的紫杉醇中特别有用。在通式(I)和(II)中,Ar是芳基基团,Ph是苯基基团或可选择取代的α或β-萘基基团,R是氢原子或可选择取代苯基的烷基基团,R1是可选择取代的苯基基团或R2-O基团,其中R2是烷基,烯基,环烷基,苯基或杂环基。