Novel pregnadiene
    2.
    发明授权
    Novel pregnadiene 失效
    新的PREGNADIENE

    公开(公告)号:US3761591A

    公开(公告)日:1973-09-25

    申请号:US3761591D

    申请日:1972-02-29

    Applicant: ROUSSEL UCLAF

    Abstract: 17 Alpha ,21-DIMETHYL-19-NOR- Delta 4,9-PREGNADIENE-3,20-DIONE OF THE FORMULA

    HAVING ANTIGONADO-HYPOPHYSIAL, PROGESTOMIMETIC AND PROGESTATIVE ACTIVITY AND ITS PREPARATION.

    Abstract translation: 17α,21-二甲基-19-异 - 四氢呋喃-4,9-孕酮-3,20-二酮,具有抗血管生成素,预防和预防活性及其制备方法。

    Process for the preparation of 17-substituted-delta4-gonenes and intermediates
    4.
    发明授权
    Process for the preparation of 17-substituted-delta4-gonenes and intermediates 失效
    制备17-取代的DELTA4-GONENES和中间体的方法

    公开(公告)号:US3843686A

    公开(公告)日:1974-10-22

    申请号:US26736472

    申请日:1972-06-29

    Applicant: ROUSSEL UCLAF

    CPC classification number: C07J73/00 C07J1/00 C07J7/00 C07J41/00 C07J75/00

    Abstract: WHEREIN R represents a member selected from the group consisting of hydrogen and the acyl of an organic carboxylic acid having from one to 18 carbon atoms, R'' represents an alkyl having from one to four carbon atoms, Riv represents a member selected from the group consisting of lower alkyl, lower alkenyl or lower alkynyl, and B represents a member selected from the group consisting of two hydrogens in the 9 Alpha and 10 Beta position and a double bond which comprises the steps of reacting a 3ketal-4,5-seco-gonane-5-one with a ketalizing agent, oxidizing the resultant 3,5-diketal-4,5-seco-gonane-17 Beta -ol, reacting the resultant 3,5-diketal-4,5-seco-gonane-17-one with an organometallic compound, hydrolyzing the resultant 3,5-diketal17 Alpha -Riv-4,5-seco-gonane-17 Beta -ol, cyclizing the resultant 17 Alpha -Riv-4,5-seco-gonane-17 Beta -ol-3,5-dione and recovering said Delta 4-gonenic steroid. The novel intermediates are also part of the invention. The Delta 4-gonenic steroids are known compounds having steroidal properties.

    A process for the production of a Delta 4-gonenic steroid having the formula

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