发明授权
US08344139B2 Process for preparing crystalline polymorphic forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride
有权
制备(6R)-L-赤型 - 四氢生物喋呤二盐酸盐的结晶多晶形式的方法
- 专利标题: Process for preparing crystalline polymorphic forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride
- 专利标题(中): 制备(6R)-L-赤型 - 四氢生物喋呤二盐酸盐的结晶多晶形式的方法
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申请号: US12776551申请日: 2010-05-10
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公开(公告)号: US08344139B2公开(公告)日: 2013-01-01
- 发明人: Rudolf Moser , Viola Groehn , Thomas Egger , Fritz Blatter
- 申请人: Rudolf Moser , Viola Groehn , Thomas Egger , Fritz Blatter
- 申请人地址: CH Schaffhausen
- 专利权人: Merck Eprova AG
- 当前专利权人: Merck Eprova AG
- 当前专利权人地址: CH Schaffhausen
- 代理机构: Millen, White, Zelano & Branigan, P.C.
- 主分类号: C07D475/04
- IPC分类号: C07D475/04 ; A61P25/00 ; A61P25/16
摘要:
Crystal forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride, hydrates and solvates and processes for their preparation are provided. These crystal forms are either intermediates for the preparation of stable polymorphic form B or are suitable for solid formulations.
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