| 发明名称 |
PROCESS FOR R-EPIMER ENRICHMENT OF 16,17-ACETAL DERIVATIVES OF 21-ACYLOXY PREGAN-1,4-DIEN-11.BETA.,16.ALPHA.,17.ALPHA.-TRIOL-3,20-DIONE DERIVATIVES |
| 摘要 |
R-epimer enrichment of 16,17-acetal derivatives of 21-acyloxy pregna-1,4-dien-11beta,16alpha,17alpha-triol-3,20-dione derivatives is effected by fractional crystallization. |
| 申请公布号 |
HU228766(B1) |
申请公布日期 |
2013.05.28 |
| 申请号 |
HU19990004127 |
申请日期 |
1997.08.29 |
| 申请人 |
TAKEDA GMBH |
发明人 |
AMSCHLER, HERMANN DR;FLOCKERZI, DIETER;GUTTERER, BEATE DR |
| 分类号 |
C07J71/00 |
主分类号 |
C07J71/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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