发明名称 |
METHODS FOR PREPARING CABERGOLINE CRYSTALLINE FORM I AND V, METHOD FOR PREPARING CABERGOLINE SOLVATED FORM V |
摘要 |
FIELD: chemical technology. ^ SUBSTANCE: invention describes the improved method for preparing the crystalline form I of cabergoline. Method involves preparing the form V by using heptane as a precipitating solvent and with exclusive conversion to the crystalline form I of cabergoline. Method involves the crystallization stage of the form V from toluene-heptane system of solvents at "reverse addition" of toluene-cabergoline concentrate to cold heptane. Method provides preparing highly pure product with the yield about 90%. ^ EFFECT: improved preparing method, increased yield. ^ 11 cl, 2 tbl, 5 dwg, 3 ex |
申请公布号 |
RU2278118(C2) |
申请公布日期 |
2006.06.20 |
申请号 |
RU20040127583 |
申请日期 |
2003.03.10 |
申请人 |
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发明人 |
SHEJKH AKHMAD J.;TOMAZI ATTILIO |
分类号 |
C07D457/06;C07D471/04;A61K31/42;A61K31/437;A61P25/00;A61P25/16;C07D261/08 |
主分类号 |
C07D457/06 |
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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