发明名称 |
Process for obtaining enantiomers of 2-arylpropionic acids |
摘要 |
A process for obtaining enantiomers of 2-arylpropionic acids by reacting a racemic mixture thereof with an amine-enantiomer, which process comprises converting the racemate of the 2-arylpropionic acid with an optically active form of threo-1-p-nitrophenyl-2-aminopropane-1,3-diol into the diastereomeric salts, separating these salts and converting the thus-obtained pure diastereomers into the free acids of the enantiomer forms of the 2-arylpropionic acid or into the salts thereof.
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申请公布号 |
US4973745(A) |
申请公布日期 |
1990.11.27 |
申请号 |
US19890345716 |
申请日期 |
1989.05.01 |
申请人 |
MEDICE CHEM.-PHARM. FABRIK PUETTER GMBH & CO. KG |
发明人 |
BLASCHKE, GOTTFRIED;SCHULTE, KARL-ERNST |
分类号 |
C07B55/00;C07B57/00;C07C51/353;C07C51/487;C07C57/30;C07C57/32;C07C57/58;C07C59/64;C07C59/66;C07D209/88 |
主分类号 |
C07B55/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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