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    • 4. 发明授权
    • Optically active halohydrin derivative and process for producing optically active epoxy alcohol derivative from the same
    • 光学活性卤代醇衍生物及其制备光学活性环氧醇衍生物的方法
    • US07582781B2
    • 2009-09-01
    • US10563635
    • 2004-07-05
    • Kazumi OkuroTatsuyoshi TanakaMasaru MitsudaKenji Inoue
    • Kazumi OkuroTatsuyoshi TanakaMasaru MitsudaKenji Inoue
    • C07D301/24C07D301/26C07D405/06C07C33/26C07C69/353C07F7/04
    • C07C67/29C07B2200/07C07C29/10C07D301/24C07C33/46
    • The present invention provides an industrially safe, easily operable process for producing an optically active epoxy alcohol derivative useful as an intermediate for pharmaceuticals from inexpensively available materials, and also provides a novel halohydrin derivative serving as an important intermediate for the epoxy alcohol derivative. Furthermore, the present invention provides a process for producing an intermediate for a triazole antifungal agent by allowing a halohydrin to react with a triazole sulfonamide, the process including a small number of steps. A process for producing an optically active epoxy alcohol derivative includes allowing an optically active α-substituted propionate derivative to react with a haloacetic acid derivative in the presence of a base to prepare an optically active haloketone derivative, allowing the resulting haloketone derivative to react with an aryl metal compound to stereoselectively prepare a halohydrin derivative, eliminating a substituent for the hydroxy group of the halohydrin derivative, and performing epoxidation with a base. Furthermore, a process for producing an intermediate for a triazole antifungal agent includes allowing a halohydrin derivative to react with a triazole sulfonamide, the process including a small number of steps.
    • 本发明提供了一种工业上安全,易于操作的方法,用于制备用作药物的廉价可得材料的中间体的光学活性环氧醇衍生物,并且还提供了作为环氧醇衍生物的重要中间体的新型卤代醇衍生物。 此外,本发明提供了通过使卤代醇与三唑磺酰胺反应来制备三唑抗真菌剂的中间体的方法,该方法包括少量的步骤。 制备光学活性环氧醇衍生物的方法包括使光学活性的α-取代的丙酸酯衍生物与卤代乙酸衍生物在碱的存在下反应以制备光学活性的卤代酮衍生物,使所得到的卤代酮衍生物与 芳基金属化合物立体选择性地制备卤代醇衍生物,除去卤代醇衍生物的羟基的取代基,并用碱进行环氧化。 此外,制备三唑抗真菌剂中间体的方法包括使卤代醇衍生物与三唑磺酰胺反应,该方法包括少量步骤。