| 发明名称 |
PREPARATION OF A TRANS-CALANOLIDE KETONE INTERMEDIATE AND CHIRAL SEPATATION OF CALANOLIDE ALCOHOLS TO GIVE RACEMIC CALANOLIDE A |
| 摘要 |
<p>The method of the invention comprises a process for synthesizing a trans-calanolide A ketone intermediate used in the synthesis of racemic trans-calanolide A. The invention further comprises a method for removing a racemic calanolide B diastereomer from a mixture of calanol.ide A and calanolide B diastereomers formed in the last step of the synthesis of calanolide A by crystallization.</p> |
| 申请公布号 |
WO2004074294(A1) |
申请公布日期 |
2004.09.02 |
| 申请号 |
WO2004US02068 |
申请日期 |
2004.01.27 |
| 申请人 |
DOW GLOBAL TECHNOLOGIES INC.;DAUGS, EDWARD, D. |
发明人 |
DAUGS, EDWARD, D. |
| 分类号 |
A61P31/12;C07D493/14;(IPC1-7):C07D493/04;A61K31/352 |
主分类号 |
A61P31/12 |
| 代理机构 |
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代理人 |
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| 主权项 |
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