Vitamin D derivatives
    3.
    发明授权
    Vitamin D derivatives 失效
    维生素D衍生物

    公开(公告)号:US07074777B2

    公开(公告)日:2006-07-11

    申请号:US10257868

    申请日:2001-04-18

    IPC分类号: A61K31/59 C07C401/00

    摘要: The object of the present invention is to provide a vitamin D derivative exhibiting excellent physiological activity as medicines, in particular as therapeutic agents for skin disease including psoriasis, and having decreased hypercalcemic activity.The present invention provides vitamin D derivatives represented by the general Formula (1): wherein in Formula (1), X is oxygen or sulfur; R1 is hydrogen or Formula (2) R2 is hydrogen or alkyl; R3 and R4 are hydrogen or alkyl or R3 and R4 together form a double bond between the 16- and 17-positions; R5 is hydrogen or —OR13 in which R13 is hydrogen or a protecting group; and R6 is hydrogen or a protecting group.

    摘要翻译: 本发明的目的是提供作为药物,特别是作为包括银屑病在内的皮肤疾病的治疗剂,具有降低的高钙血症活性的作为药物的优异生理活性的维生素D衍生物。 本发明提供由通式(1)表示的维生素D衍生物:其中在式(1)中,X为氧或硫; R 1是氢或式(2)R 2是氢或烷基; R 3和R 4是氢或烷基或R 3和R 4共同形成双键 16位和17位; R 5是氢或-OR 13,其中R 13是氢或保护基; 并且R 6是氢或保护基。