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 epoxyalcohol 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、易于操作的工艺,可利用廉价材料生产一种光学活性环氧醇衍
生物,用作药物的中间体,本发明还提供了一种新型卤代醇衍
生物,用作环氧醇衍
生物的重要中间体。此外,本发明还提供了一种通过让卤代醇与
三唑磺酰胺反应来生产三唑类抗真菌剂中间体的工艺,该工艺包括少量步骤。一种生产光学活性环氧醇衍
生物的工艺包括让光学活性α-取代的
丙酸衍
生物在碱存在下与卤
乙酸衍
生物反应制备光学活性卤酮衍
生物,让所得卤酮衍
生物与芳基
金属化合物反应立体选择性地制备卤代醇衍
生物,消除卤代醇衍
生物羟基的取代基,并用碱进行环氧化反应。此外,一种生产三唑类抗真菌剂中间体的工艺包括让卤代醇衍
生物与
三唑磺酰胺反应,该工艺包括少量步骤。