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公开(公告)号:US5985893A
公开(公告)日:1999-11-16
申请号:US641569
申请日:1996-05-01
申请人: Xuanqiang Yu , William C. Schinzer , Michael J. Dunn , Robert Shih-Liang Chao , Dale S. Aldrich , Azhwarsamy Jeganathan , Michael S. Bergren
发明人: Xuanqiang Yu , William C. Schinzer , Michael J. Dunn , Robert Shih-Liang Chao , Dale S. Aldrich , Azhwarsamy Jeganathan , Michael S. Bergren
IPC分类号: A61K31/44 , A61K31/4427 , A61P31/04 , C07D401/04 , A61K31/47 , C07D215/56
CPC分类号: C07D401/04
摘要: Novel crystal forms of the fluoroquinolone, [S-(R*,S*)]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[3-[1-(methylamino)ethyl]-1-pyrrolidinyl]-4-oxo-3-quinolinecarboxylic acid are disclosed. The forms are characterized by one methanol solvate form, and three anhydrous polymorphic forms, of which, Form III exhibits greatest stability and decreased hygroscopicity.
摘要翻译: [5-(R *,S *)] -1-环丙基-6-氟-1,4-二氢-8-甲氧基-7- [3- [1-(甲基氨基)乙基] -1-吡咯烷基] -4-氧代-3-喹啉羧酸。 这些形式的特征在于一种甲醇溶剂合物形式和三种无水多晶型物,其中III型表现出最大的稳定性和降低的吸湿性。