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    • 5. 发明授权
    • Process for the preparation of amorphous calcium salt of atorvastatin
    • 阿托伐他汀无定形钙盐的制备方法
    • US08697741B2
    • 2014-04-15
    • US12397981
    • 2009-03-04
    • Ljubomir AntoncicGorazd SorsakAnton Copar
    • Ljubomir AntoncicGorazd SorsakAnton Copar
    • C07D207/34A61K31/40
    • C07D207/34
    • A process for the preparation of amorphous atorvastatin calcium. The process includes providing a reaction mixture having a pH between 6.5 and 8.0 containing a sodium salt of atorvastatin and tetrahydrofuran. A non-cyclic chlorinated organic solvent selected from the group consisting of dichloromethane, trichloroethane, tetrachloroethane and chloroform or addition of cyclic hydrocarbon solvent selected from the group consisting of cyclohexane, cyclopentane and methyl cyclohexane is added to provide a mixture of organic solvents. An equivalent or an excess quantity of a source of calcium ions selected from the group consisting of calcium acetate and calcium chloride is added. Amorphous atorvastatin calcium is isolated from an organic phase comprising the mixture of organic solvents.
    • 一种制备无定形阿托伐他汀钙的方法。 该方法包括提供pH为6.5至8.0的含有阿托伐他汀和四氢呋喃的钠盐的反应混合物。 加入选自二氯甲烷,三氯乙烷,四氯乙烷和氯仿的非环状氯化有机溶剂或加入选自环己烷,环戊烷和甲基环己烷的环状烃溶剂以提供有机溶剂的混合物。 加入等量或过量的钙离子源,其选自乙酸钙和氯化钙。 从包含有机溶剂的混合物的有机相中分离无定形阿托伐他汀钙。