Process and intermediates for the production of 7-substituted antiestrogens
    1.
    发明申请
    Process and intermediates for the production of 7-substituted antiestrogens 有权
    用于生产7-取代的抗雌激素的方法和中间体

    公开(公告)号:US20050101583A1

    公开(公告)日:2005-05-12

    申请号:US10398924

    申请日:2001-10-09

    摘要: A process for preparing an intermediate compound of formula (II) where X is as defined in the specification, R1 is haloalkyl, alkyl, alkenyl, cycloalkyl, carboxyalkyl, alkoxycarbonylalkyl, aryl or arylalkyl; R2, R3, R4 and R5 are organic groups as defined in the specification, which process comprises aromatisation of a compound of formula (III) where R1, R2, R3, n, X and R5 are as defined in relation to formula (II) and R4′ is a group R4 or a precursor group thereof, and thereafter if necessary or desired, carrying out one or more of the following steps: (i) removing any hydroxy-protecting groups R; (ii) converting a precursor group R4′ to a group R4, or where R4′ is a group R4, converting it to a different such group. Compounds obtained are useful intermediates for example in the preparation of fulvestrant. Novel intermediates are also claimed.

    摘要翻译: 制备其中X如说明书中所定义的式(II)的中间体化合物的方法是卤代烷基,烷基,烯基,环烷基,羧基烷基,烷氧基羰基烷基,芳基或芳基烷基; R 2,R 3,R 4和R 5是说明书中定义的有机基团,该方法 包括式(III)化合物的芳构化,其中R 1,R 2,R 3,R 3,n,X和R 5 如式(II)所定义,并且R 4'是基团R 4或其前体基团,然后如果需要或需要, 进行一个或多个以下步骤:(i)除去任何羟基保护基团R; (ii)将前体基团R 4'转化成基团R 4,或其中R 4'是基团R 4 ,将其转换为不同的这样的组。 获得的化合物是例如制备氟维司群的有用的中间体。 还要求新的中间体。