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).
本发明提供了一种n-烷基3-氨基-3-芳基丙酸酯,其化学式表示为(I):其中,Ar1表示一个芳基基团,可以具有一个或多个取代基,但不包括苯基和4-甲氧基苯基;R1表示一个n-丙基基团或n-丁基基团。本发明还提供了制备该化合物的方法,以及其光学活性化合物和光学活性(S或R)-3-氨基-3-芳基丙酸的化学式表示为(III-a):其中,Ar表示一个芳基基团,可以具有一个或多个取代基,*表示一个不对称碳,以及制备光学活性n-烷基(R或S)-3-氨基-3-芳基丙酸酯的方法,其化学式表示为(IV-a):其中,Ar和R1的含义与上述定义相同,*表示一个不对称碳,但其绝对构型与化合物的化学式(III-a)相反。