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公开(公告)号:US20090298879A1
公开(公告)日:2009-12-03
申请号:US12301396
申请日:2007-05-18
申请人: Irena Krizmanic , Lidija Lerman , Zrinka Samardzic , Katarzyna Kaczorowska , Andrzej Manikowski , Barbara Zioro , Ivica Grebenar , Jasna Dogan Koruznjak
发明人: Irena Krizmanic , Lidija Lerman , Zrinka Samardzic , Katarzyna Kaczorowska , Andrzej Manikowski , Barbara Zioro , Ivica Grebenar , Jasna Dogan Koruznjak
IPC分类号: A61K31/445 , C07C211/01 , C07D211/06 , A61P25/00 , G01N30/02
CPC分类号: C07D211/32 , C07C225/18
摘要: The present invention relates to impurities of donepezil, or a pharmaceutically acceptable salt thereof, which may be produced during synthesis and storage of donepezil, or a pharmaceutically-acceptable salt thereof, and to methods of identifying such impurities. The invention also relates to the use of these impurities in analytical techniques and to product that contain certain low levels of these impurities in particular the following impurities are disclosed: formula (I) and formula (II).
摘要翻译: 本发明涉及多奈哌齐或其药学上可接受的盐的杂质,其可在多奈哌齐的合成和储存期间产生,或其药学上可接受的盐,以及鉴定这些杂质的方法。 本发明还涉及这些杂质在分析技术中的用途以及含有这些杂质的某些低含量的产品,特别是所公开的以下杂质:式(I)和式(II)。