发明公开
EP1556041A1 A NEW CRYSTALLINE FORM OF THE SODIUM SALT OF 3-PYRIDYL-1-HYDROXYETHYLIDENE-1,1-BISPHOSPHONIC ACID 有权
3-吡啶基-1-羟基-1,1-二膦钠盐NEW结晶水合物

  • 专利标题: A NEW CRYSTALLINE FORM OF THE SODIUM SALT OF 3-PYRIDYL-1-HYDROXYETHYLIDENE-1,1-BISPHOSPHONIC ACID
  • 专利标题(中): 3-吡啶基-1-羟基-1,1-二膦钠盐NEW结晶水合物
  • 申请号: EP03757655.0
    申请日: 2003-10-21
  • 公开(公告)号: EP1556041A1
    公开(公告)日: 2005-07-27
  • 发明人: RICHTER, JindrichJIRMAN, Josef
  • 申请人: Zentiva, A.S.
  • 申请人地址: Dolni Mecholupy 130 102 37 Praha 10 CZ
  • 专利权人: Zentiva, A.S.
  • 当前专利权人: Zentiva, A.S.
  • 当前专利权人地址: Dolni Mecholupy 130 102 37 Praha 10 CZ
  • 代理机构: Jirotkova, Ivana
  • 优先权: CZ20023574 20021025
  • 国际公布: WO2004037252 20040506
  • 主分类号: A61K31/4406
  • IPC分类号: A61K31/4406 A61K31/663 C07F9/38 C07F9/58
A NEW CRYSTALLINE FORM OF THE SODIUM SALT OF 3-PYRIDYL-1-HYDROXYETHYLIDENE-1,1-BISPHOSPHONIC ACID
摘要:
A crystalline, hydrated form of the sodium salt of 3-pyridyl-1-hydroxyethylidene-1,l-bisphosphonic acid contains from 6.4 up to 22 weight % of sodium, based on the anhydrous substance, and 15 up to 23 weight % of crystalline water if the sodium content is lower than 7.5 weight %, or 4.5 up to 18 weight % if the sodium content is higher than 7.5 weight %.
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