| 发明名称 |
Thermodynamically stable crystal form of 4-deoxy-4-epi-methylamino avermectin B1a/B1b benzoic acid salt and processes for its preparation |
| 摘要 |
The most thermodynamically stable crystalline form of the benzoic acid salt of 4"-deoxy-4"-epi-methylamino avermectin B1a/B1b as the hemihydrate is obtained by crystallization from organic solvents containing a controlled amount of water. |
| 申请公布号 |
ZA9406203(B) |
申请公布日期 |
1995.03.31 |
| 申请号 |
ZA19940006203 |
申请日期 |
1994.08.17 |
| 申请人 |
MERCK & CO., INC. |
发明人 |
RAYMOND CVETOVICH;RICHARD DEMCHAK;JAMES A MCCAULEY;RICHARD J VARSALONA |
| 分类号 |
C07H17/08;A01N43/90;A01P7/04;C07D493/22;C07H17/04;C07H19/01 |
主分类号 |
C07H17/08 |
| 代理机构 |
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| 主权项 |
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| 地址 |
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