发明名称 |
PROCESS FOR THE RECOVERY OF PURE HELLEBRIN |
摘要 |
<p>There is provided a process for the recovery of pure hellebrin which comprises extracting a defatted hellebrin extract dissolved in a water-alkanol mixture or water-acetone mixture with a mixture of a lower alkanol or acetone and di-, tri-, or tetrachloromethane (or dichloroethane) evaporating the extraction agent in a vacuum and then heating with ethanol until the deposition of the first hellebrin crystals begins.</p> |
申请公布号 |
CA1202298(A) |
申请公布日期 |
1986.03.25 |
申请号 |
CA19830438051 |
申请日期 |
1983.09.30 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
OEPEN, GERHARD;MANGARTZ, KARL-HEINZ;SEIFRIED, NORBERT;ENGEL, JURGEN;ISAAC, OTTO |
分类号 |
C07H15/256;A61K31/585;A61K36/71;C07J19/00;(IPC1-7):C07J63/00 |
主分类号 |
C07H15/256 |
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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