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    • 6. 发明授权
    • Stereoselective synthesis of certain trifluoromethyl-substituted alcohols
    • 某些三氟甲基取代的醇的立体选择性合成
    • US07507843B2
    • 2009-03-24
    • US10955165
    • 2004-09-30
    • Jinhua J. SongZhulin TanJinghua XuNathan K. YeeChris H. Senanayake
    • Jinhua J. SongZhulin TanJinghua XuNathan K. YeeChris H. Senanayake
    • C07D301/27
    • C07D303/22
    • A process for stereoselective synthesis of compounds of Formula X wherein: R1 is an aryl or heteroaryl group, each optionally independently substituted with one to three substituent groups, wherein each substituent group of R1 is independently C1-C5 alkyl, C2-C5 alkenyl, C2-C5 alkynyl, C3-C8 cycloalkyl, heterocyclyl, aryl, heteroaryl, C1-C5 alkoxy, C2-C5 alkenyloxy, C2-C5 alkynyloxy, aryloxy, C1-C5 alkanoyloxy, C1-C5 alkanoyl, aroyl, trifluoromethyl, trifluoromethoxy, or C1-C5 alkylthio, wherein each substituent group of R1 is optionally independently substituted with one to three substituent groups selected from methyl, methoxy, fluoro, chloro, hydroxy, oxo, cyano, or amino; and R2 and R3 are each independently hydrogen or C1-C5 alkyl, or R2 and R3 together with the carbon atom they are commonly attached to form a C3-C8 spiro cycloalkyl ring.
    • 用于立体选择性合成式X化合物的方法,其中:R 1是芳基或杂芳基,各自任选地独立地被1至3个取代基取代,其中R 1的每个取代基独立地是C 1 -C 5烷基,C 2 -C 5烯基,C 2 -C 5炔基,C 3 -C 8环烷基,杂环基,芳基,杂芳基,C 1 -C 5烷氧基,C 2 -C 5烯氧基,C 2 -C 5炔氧基,芳氧基,C 1 -C 5烷酰氧基,C 1 -C 5烷酰基,芳酰基,三氟甲基,三氟甲氧基或C 1 -C 5烷硫基,其中R 1的每个取代基任选地被一至三个选自甲基,甲氧基,氟,氯,羟基,氧代,氰基或氨基的取代基独立地取代。 并且R 2和R 3各自独立地为氢或C 1 -C 5烷基,或者R 2和R 3与它们通常连接的碳原子一起形成C 3 -C 8螺环烷基环。