申请人:Tawa Mark
公开号:US20050113410A1
公开(公告)日:2005-05-26
Zafirlukast, a leukotriene receptor antagonist, converts to a less bioavailable form in the presence of water. The present invention relates to crystalline forms of zafirlukast including salts and solvates of zafirlukast substantially more stable in water than presently marketed zafirlukast. A method of preparing the compounds of the present invention is disclosed, as well as a method of treating asthma.
扎非鲁卡斯特是一种白三烯受体拮抗剂,在水的存在下会转化为一种生物利用率较低的形式。本发明涉及扎非鲁卡斯特的晶体形式,包括盐和溶剂合物,这些形式在水中比目前市场上销售的扎非鲁卡斯特更加稳定。本发明还揭示了一种制备本发明化合物的方法,以及一种治疗哮喘的方法。