发明名称 |
METHOD FOR PRODUCING (1R,5S) ANHYDROECGONINE ESTER SALTS |
摘要 |
The invention relates to a large-scale method for producing salts of (IR,5S) anhydroecgonine esters. The salt formation and selective crystallization of (IR,5S) anhydroecgonine esters with chiral acids is highly efficient in producing an enantiomer form, any undesired enantiomers and other impurities being removed. The ester and its salts are used as the starting material for producing active agents.
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申请公布号 |
US2010331544(A1) |
申请公布日期 |
2010.12.30 |
申请号 |
US20080680066 |
申请日期 |
2008.09.25 |
申请人 |
BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG |
发明人 |
PUDER CARSTEN H.;HOELLMUELLER THOMAS |
分类号 |
C07D451/02 |
主分类号 |
C07D451/02 |
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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