Process for preparing optically active beta-aminocarboxylic acids from racemic n-acylated beta-aminocarboxylic acids
申请人:Groger Harald
公开号:US20050153401A1
公开(公告)日:2005-07-14
A process is described for preparing optically active β-atninocarboxylic acids from racemic N-acylated β-aminocarboxylic acids by cnantiosclccthc hydrolysis of the N-acylated β-aminocarboxylic acid in the presence of a hydrolase by way of biocatalyst, wherein the N-acyl substituent of the N-acylated β-aminocarboxylic acid (I) exhibits Structure I in which R
1
, R
2
are each selected, independently of one another, from H, halogen, alkiyl residues, OH, alkoxy residues and aryloxy residues; R
3
is selected from halogen, alkoxy residues and aryloxy residues; (II) Structure IIA or IIB or the structure of the corresponding salts or (III) Structure III or the structure of the corresponding salt.
本文描述了一种制备光学活性β-氨基羧酸的过程,该过程通过生物催化剂中的水解酶,在N-酰化的β-氨基羧酸存在下进行对映选择性水解,其中N-酰基取代基(I)的结构为I结构,其中R1、R2分别独立地选择自H、卤素、烷基残基、OH、烷氧基和芳氧基;R3从卤素、烷氧基和芳氧基中选择;(II)IIA或IIB结构或相应盐的结构或(III)III结构或相应盐的结构。