申请人:Heck Rainer
公开号:US20070123564A1
公开(公告)日:2007-05-31
Method for preparing (S)(+)phenyl acetic acid derivatives having the general formula (I):
wherein R
1
is a linear or branched alkyl group with 1-6 carbon atoms or substituted benzyl group, and R
2
is methyl, ethyl or propyl group said method, characterised in that a compound of the general formula (II):
wherein R
1
is as given above, and R
3
is a nucleofuge, or a suitable salt of a compound of the general formula (II) is reacted with a compound having the general formula (III):
wherein R
2
is as given above, and R
4
is hydrogen or a nucleofuge that can be removed hydrolytically, and the protective group R
4
that may be present, may be subsequently removed hydrolytically.
制备具有一般式(I)的(S)(+)苯乙酸衍生物的方法:其中R1是具有1-6个碳原子的线性或支链烷基或取代苯甲基,而R2是甲基、乙基或丙基基团,该方法的特征在于,将一般式(II)的化合物:其中R1如上所述,而R3是亲核脱离基,或者是一般式(II)的合适盐与一般式(III)的化合物反应:其中R2如上所述,而R4是氢或可通过水解去除的亲核脱离基,可能存在的保护基R4可以随后通过水解去除。