发明名称 |
POLYMORPHS OF DONEPEZIL HYDROCHLORIDE AND PROCESS FOR PRODUCTION |
摘要 |
Donepezil hydrochloride, 1-benzyl-4-Ä(5,6-dimethoxy-1-indanon)-2-ylÜmethylpiperidine hydrochloride, is provided here in the form of four polymorphs which are stable against heat and humidity in the pharmaceutical use. They can be industrially produced. They are specified by peaks in X-ray powder diffraction pattern and absorption peaks in infrared absorption spectra in potassium bromide. |
申请公布号 |
EP1019374(B1) |
申请公布日期 |
2003.01.02 |
申请号 |
EP19970924337 |
申请日期 |
1997.06.06 |
申请人 |
EISAI CO., LTD. |
发明人 |
IMAI, AKIO;WATANABE, HIDEAKI;KAJIMA, TAKASHI;ISHIHAMA, YASUSHI;OHTSUKA, AKIYO;TANAKA, TOMOHIDE;NARABU, YUKIO |
分类号 |
A61K31/44;A61P25/28;C07D211/32 |
主分类号 |
A61K31/44 |
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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