Optically active 4,4-di-substituted oxazolidine derivative and method for producing same
    2.
    发明授权
    Optically active 4,4-di-substituted oxazolidine derivative and method for producing same 失效
    光学活性的4,4-二取代的恶唑烷衍生物及其制备方法

    公开(公告)号:US07547790B2

    公开(公告)日:2009-06-16

    申请号:US11664053

    申请日:2005-10-26

    IPC分类号: C07D263/02 C07D413/00

    摘要: An optically active 4,4-di-substituted oxazolidine compound having the formula (I) wherein R1 represents a substituted C1-C3 alkyl group, a substituted C2-C3 alkenyl group, a formyl group, a hydroxymethyl group, a group of the formula COOR, a halogenated methyl group, a phosphonium methyl group; R represents a C1-C6 alkyl group, a C2-C6 alkenyl group, a phenyl group or a benzyl group; R2 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, or a phenyl group; R3 represents a C2-C6 alkanoyl group, a C1-C6 alkyloxycarbonyl group, a benzoyl group, a phenyloxycarbonyl group or a benzyloxycarbonyl group and R4 represents a C1-C6 alkyl group or a C2-C6 alkenyl group.

    摘要翻译: 具有式(I)的光学活性的4,4-二取代的恶唑烷化合物,其中R 1表示取代的C 1 -C 3烷基,取代的C 2 -C 3烯基,甲酰基,羟甲基,式 COOR,卤代甲基,鏻甲基; R表示C1-C6烷基,C2-C6烯基,苯基或苄基; R2表示C1-C6烷基,C3-C10环烷基或苯基; R3表示C2-C6烷酰基,C1-C6烷氧基羰基,苯甲酰基,苯氧基羰基或苄氧基羰基,R4表示C1-C6烷基或C2-C6烯基。

    Optically Active 4,4-Di-Substituted Oxazolidine Derivative and Method for Producing Same
    3.
    发明申请
    Optically Active 4,4-Di-Substituted Oxazolidine Derivative and Method for Producing Same 失效
    光学活性的4,4-二取代的恶唑烷衍生物及其制备方法

    公开(公告)号:US20080108828A1

    公开(公告)日:2008-05-08

    申请号:US11664053

    申请日:2005-10-26

    IPC分类号: C07D263/04

    摘要: An optically active 4,4-di-substituted oxazolidine compound having the formula (I) wherein R1 represents a substituted C1-C3 alkyl group, a substituted C2-C3 alkenyl group, a formyl group, a hydroxymethyl group, a group of the formula COOR, a halogenated methyl group, a phosphonium methyl group; R represents a C1-C6 alkyl group, a C2-C6 alkenyl group, a phenyl group or a benzyl group; R2 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, or the like or a phenyl group; R3 represents a C2-C6 alkanoyl group, a C1-C6 alkyloxycarbonyl group, a benzoyl group, a phenyloxycarbonyl group or a benzyloxycarbonyl group and R4 represents a C1-C6 alkyl group or a C2-C6 alkenyl group.

    摘要翻译: 具有式(I)的光学活性的4,4-二取代的恶唑烷化合物,其中R 1表示取代的C 1 -C 3 - 烷基,取代的C 1 -C 3 - 烯基,甲酰基,羟甲基,式COOR基团,卤代甲基,甲基 组; R表示C 1 -C 6烷基,C 2 -C 6亚烷基,C 2 -C 6亚烷基,苯基 基团或苄基; R 2表示C 1 -C 6烷基,C 3 -C 10烷基,C 3 -C 6烷基, 环烷基等,或苯基; R 3表示C 2 -C 6烷酰基,C 1 -C 6烷酰基,C 1 -C 6烷酰基, 烷氧基羰基,苯甲酰基,苯氧基羰基或苄氧基羰基,R 4表示C 1 -C 6烷基 或C 2 -C 6 -C 6烯基。

    Method for manufacturing neuraminic acid derivatives
    4.
    发明授权
    Method for manufacturing neuraminic acid derivatives 有权
    神经氨酸衍生物的制备方法

    公开(公告)号:US08455659B2

    公开(公告)日:2013-06-04

    申请号:US12450699

    申请日:2008-04-11

    IPC分类号: C07D498/04

    摘要: A method for manufacturing neuraminic acid derivatives is provided, also synthetic intermediates of the neuraminic acid derivatives and methods for their manufacture, and neuraminic acid derivatives having high purity.[Means for Solution]A synthetic intermediate compound represented by the formula (7) is provided: [wherein R3 represents alkyl; R4 and R5 each represents H, alkyl, phenyl, or together represent tetramethylene, pentamethylene, oxo].

    摘要翻译: 还提供了制备神经氨酸衍生物的方法,还涉及神经氨酸衍生物的合成中间体及其制备方法和具有高纯度的神经氨酸衍生物。 [解决方案]提供由式(7)表示的合成中间体化合物:[其中R 3表示烷基; R4和R5各自表示H,烷基,苯基,或一起表示四亚甲基,五亚甲基,氧代〕。