发明名称 |
PRODUCTION OF HIGH PURITY ALKALOIDS |
摘要 |
A method for extracting valuable alkaloid materails from plants containing the same comprising slurrying the comminuted plant material in a mixture of water and a cosolvent at a pH of 8.5, adding a nonpolar, water-insoluble, solvent to dissolve the alkaloid, washing the nonpolar phase with acidulated water to convert the alkaloid to the imminium ion or acid salt form, precipitating the alkaloid, and recovering and drying the alkaloid.
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申请公布号 |
CA1334411(C) |
申请公布日期 |
1995.02.14 |
申请号 |
CA19890588896 |
申请日期 |
1989.01.23 |
申请人 |
VIPONT PHARMACEUTICAL, INC. |
发明人 |
BOULWARE, RICHARD;SCHLOWSKY, GEORGE |
分类号 |
C07D491/153;A61K36/00;A61K36/18;A61K36/29;B01D11/02;C07D455/03;C07D491/056;C07D491/14;C07G5/00;(IPC1-7):C07D491/056 |
主分类号 |
C07D491/153 |
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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