发明申请
- 专利标题: METHOD FOR SELECTIVELY CRYSTALLIZING A Z ISOMER OF IOPROMIDE
- 专利标题(中): 用于选择性地结晶碘吡啶的Z异构体的方法
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申请号: US13132791申请日: 2009-10-12
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公开(公告)号: US20110245347A1公开(公告)日: 2011-10-06
- 发明人: Soo-Jin Choi , Byung-Goo Lee , Han-Kuk Lee , Young-Mook Lim , Wol-Young Kim , Joon-Hwan Lee
- 申请人: Soo-Jin Choi , Byung-Goo Lee , Han-Kuk Lee , Young-Mook Lim , Wol-Young Kim , Joon-Hwan Lee
- 申请人地址: KR Sungnam-si
- 专利权人: DAEWOONG PHARMACEUTICAL CO., LTD.
- 当前专利权人: DAEWOONG PHARMACEUTICAL CO., LTD.
- 当前专利权人地址: KR Sungnam-si
- 优先权: KR10-2008-0123138 20081205; KR10-2009-0085014 20090909
- 国际申请: PCT/KR09/05827 WO 20091012
- 主分类号: A61K31/166
- IPC分类号: A61K31/166 ; C07C231/16
摘要:
The present invention relates to a method for selectively crystallizing Z isomer of iopromide of formula (I) comprising a) dissolving a crude iopromide comprising a mixture of E and Z isomers or a concentrate thereof in an alcohol, and b) heating the resulting alcohol solution to obtain crystalline of Z isomer of iopromide; and a method for preparing a composition comprising the crystalline Z isomer of iopromide.
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