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    • 9. 发明授权
    • Polymorphs of 1-cyclopropy1-7-([s,s])-2,8-diazadicyclo[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride and methods for the preparation thereof
    • 1-环丙基] -7 - ([s,s])-2,8-二氮杂双环[4.3.0]壬-8-基)-6-氟-1,4-二氢-8-甲氧基-4-氧代 -3-喹啉羧酸盐酸盐及其制备方法
    • US08236817B2
    • 2012-08-07
    • US10580173
    • 2004-10-28
    • Stefano TurchettaPietro MassardoValentina Aromatario
    • Stefano TurchettaPietro MassardoValentina Aromatario
    • A61K31/47C07D471/04
    • C07D471/04
    • Two novel crystalline forms, designated form A and form B of the antibacterial agent 1-cyclopropyl-7-(S,S)-2,8-diazabicyclo[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro-8-methoxy -4-oxo-3-quinoline carboxylic acid hydrochloride of formula, the preparation thereof, and their pharmaceutical compositions are described. These crystalline forms, which are characterized by greater ability and ease of preparation and of formulation, can be produced by industrially applicable methods which comprises the steps of: a) suspending 1-cyclopropyl-7-(S,S)-2,8-diazabicyclo-[4.3.0]non-8-yl)-6-fluoro-1,4-dihydro -8-methoxy-4-oxo-3-quinoline carboxylic acid hydrochloride in a solvent selected from an alcohol and a polyalcohol, b) heating the mixture under reflux, c) cooling, d) isolating the product which is separated, (form A) and, additionally, e), reslurrying the solid at reflux in a solvent selected from alcohols and polyols or mixtures thereof, in which the resulting mixture has an overall water content of between 2.5% and 0.01% by weight, f) isolating the product (form B).
    • 两种新颖的结晶形式,称为抗菌剂1-环丙基-7-(S,S)-2,8-二氮杂双环[4.3.0]壬-8-基)-6-氟-1,2-的形式A和形式B, 描述了下式的4-二氢-8-甲氧基-4-氧代-3-喹啉羧酸盐酸盐及其药物组合物。 其特征在于具有更大的制备能力和制备容易性的结晶形式可以通过工业上可应用的方法制备,其包括以下步骤:a)将1-环丙基-7-(S,S)-2,8- 二氮杂双环[4.3.0]壬-8-基)-6-氟-1,4-二氢-8-甲氧基-4-氧代-3-喹啉羧酸盐酸盐在选自醇和多元醇的溶剂中,b )在回流下加热混合物,c)冷却,d)分离分离的产物(形式A),另外e)分离固体,在选自醇和多元醇或其混合物的溶剂中回流固化,其中 所得混合物的总含水量为2.5重量%至0.01重量%,f)分离产物(B型)。