发明申请
- 专利标题: Microcrystal
-
申请号: US10554511申请日: 2004-05-07
-
公开(公告)号: US20060205745A1公开(公告)日: 2006-09-14
- 发明人: Kazutoshi Kuroda , Noboru Aoki , Toshiro Ochiai , Akihiro Uchida , Yasuhiro Ishikawa , Makoto Kigoshi , Eiji Hayakawa
- 申请人: Kazutoshi Kuroda , Noboru Aoki , Toshiro Ochiai , Akihiro Uchida , Yasuhiro Ishikawa , Makoto Kigoshi , Eiji Hayakawa
- 申请人地址: JP Chiyoda-ku, Tokyo 100-8185
- 专利权人: Kyowa Hakko Kogyo Co,. Ltd.
- 当前专利权人: Kyowa Hakko Kogyo Co,. Ltd.
- 当前专利权人地址: JP Chiyoda-ku, Tokyo 100-8185
- 优先权: JP2003-131417 20030509
- 国际申请: PCT/JP04/06495 WO 20040507
- 主分类号: A61K31/522
- IPC分类号: A61K31/522 ; C07D473/02
摘要:
Microcrystals of (E)-8-(3,4-dimethoxystyryl)-1,3-diethyl-7-methyl-3,7-dihydro-1H-purine-2,6-dione having an average particle size of less than 50 μm; microcrystals of (E)-8-(3,4-dimethoxystyryl)-1,3-diethyl-7-methyl-3,7-dihydro-1H-purine-2,6-dione having an average particle size of less than 50 μm and a crystallinity of 20% or more or the like, which possess excellent solubility, stability, bioavailability, dispersing property in a pharmaceutical formulation; and the like are provided. A solid pharmaceutical formulation which is characterized by comprising the same is also provided.
公开/授权文献
- US07541363B2 Microcrystal 公开/授权日:2009-06-02