(R)-3-氨基-3-(4-硝基苯基)丙酸 、 sodium hydroxide 、 乙酸酐 、 盐酸 以
水 为溶剂,
反应 2.5h,
以to give 11.6 g of acetyl-p-nitro-β-phenylalanine at a yield of 96.9%的产率得到Acetyl-p-nitro-beta-phenylalanine
参考文献:
名称:
Process for the Production of beta-Amino Acids Using Acylase
3-Amino-3-arylpropionic acid n-alkyl esters, process for production thereof, and process for production of optically active 3-amino-3-arylpropionic acids and esters of the antipodes thereto
申请人:Yamamoto Yasuhito
公开号:US20060178433A1
公开(公告)日:2006-08-10
The present invention is to provide an n-alkyl 3-amino-3-arylpropionate represented by the formula (I):
wherein Ar
1
represents an aryl group which may have a substituent(s), provided that a phenyl group and 4-methoxyphenyl group are excluded, R
1
represents an n-propyl group or an n-butyl group,
and a process for preparing the same, and its optically active compound and an optically active (S or R)-3-amino-3-arylpropionic acid represented by the formula (III-a):
wherein Ar represents an aryl group which may have a substituent(s), and * represents an asymmetric carbon,
and a process for preparing an optically active n-alkyl (R or S)-3-amino-3-arylpropionate represented by the formula (IV-a):
wherein Ar and R
1
have the same meanings as defined above, * represents an asymmetric carbon, provided that it has a reverse absolute configuration to the compound of the formula (III-a).
Process for the production of beta-amino acids using acylase
申请人:Nakamatsu Tsuyoshi
公开号:US20060035345A1
公开(公告)日:2006-02-16
The present invention relates to a
Variovorax
sp. which produces an acylase having an asymmetric hydrolysis activity on an N-acetyl β-amino acid to selectively produce an R-β-amino acid, and a
Burkholderia
sp. which produces both an acylase having an asymmetric hydrolysis activity on an N-acetyl β-amino acid to selectively produce an S-β-amino acid and an acylase having an asymmetric hydrolysis activity of an N-acetyl β-amino acid to selectively produce an R-β-amino acid, and a process for the selective production of an S-, or R-β-amino acid using the above strains.
Process for the Production of beta-Amino Acids Using Acylase
申请人:Nakamatsu Tsuyoshi
公开号:US20090258398A1
公开(公告)日:2009-10-15
The present invention relates to a
Variovorax
sp. which produces an acylase having an asymmetric hydrolysis activity on an N-acetyl β-amino acid to selectively produce an R-β-amino acid, and a
Burkholderia
sp. which produces both an acylase having an asymmetric hydrolysis activity on an N-acetyl β-amino acid to selectively produce an S-β-amino acid and an acylase having an asymmetric hydrolysis activity of an N-acetyl β-amino acid to selectively produce an R-β-amino acid, and a process for the selective production of an S-, or R-β-amino acid using the above strains.
3-AMINO-3-ARYLPROPIONIC ACID n-ALKYL ESTERS, PROCESS FOR PRODUCTION THEREOF, AND PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE 3-AMINO-3-ARYLPROPIONIC ACIDS AND ESTERS OF THE ANTIPODES THERETO
申请人:Ube Industries, Ltd.
公开号:EP1621529A1
公开(公告)日:2006-02-01
The present invention is to provide an n-alkyl 3-amino-3-arylpropionate represented by the formula (I):
wherein Ar1 represents an aryl group which may have a substituent(s), provided that a phenyl group and 4-methoxyphenyl group are excluded, R1 represents an n-propyl group or an n-butyl group,
and a process for preparing the same, and its optically active compound and an optically active (S or R)-3-amino-3-arylpropionic acid represented by the formula (III-a):
wherein Ar represents an aryl group which may have a substituent(s), and * represents an asymmetric carbon,
and a process for preparing an optically active n-alkyl (R or S)-3-amino-3-arylpropionate represented by the formula (IV-a):
wherein Ar and R1 have the same meanings as defined above, * represents an asymmetric carbon, provided that it has a reverse absolute configuration to the compound of the formula (III-a).
Enzymatic process for the enantiomeric resolution of amino acids
申请人:——
公开号:US20030087399A1
公开(公告)日:2003-05-08
An enzymatic process permitting the enantiomeric resolution of amino acids is provided. More specifically, this process for separating the enantiomers of an amino acid comprises treating a racemic mixture of the amino acid with glutaric anhydride and then with the enzyme glutaryl-7-ACA acylase so as to recover one of the enantiomers of the amino acid, the other enantiomer remaining in the form of the corresponding glutarylamide derivative.