发明名称 |
A CHEMICAL PROCESS FOR PREPARING CIMETIDINE POLYMORPH B |
摘要 |
A novel process for preparing cimetidine polymorph "B" comprises precipitating cimetidine from an aqueous-alcoholic solution of an acid addition salt. The precipitation is conducted at a temperature of above 15 DEG C. |
申请公布号 |
ZA8705675(B) |
申请公布日期 |
1988.11.30 |
申请号 |
ZA19870005675 |
申请日期 |
1987.07.31 |
申请人 |
SMITHKLINE BECKMAN CORPORATION |
发明人 |
HAROLD GRABOYES;DAVID SAMUEL KIRKPATRICK |
分类号 |
C07D233/24;C07C279/16;C07D233/54;C07D233/64 |
主分类号 |
C07D233/24 |
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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