11.BETA.-FLUORO-3-ACETOXYESTRA-3,5-DIEN-17-ON UND VERFAHREN ZU SEINER HERSTELLUNG
    5.
    发明公开
    11.BETA.-FLUORO-3-ACETOXYESTRA-3,5-DIEN-17-ON UND VERFAHREN ZU SEINER HERSTELLUNG 有权
    11.BETA.Fluoro-3-ACETOXYESTRA-3,5-DIEN-17-ON UND VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号:EP2215104A1

    公开(公告)日:2010-08-11

    申请号:EP08843298.4

    申请日:2008-10-18

    IPC分类号: C07J1/00

    CPC分类号: C07J1/0059

    摘要: The present invention relates to 11β-fluoro-3-acetoxyestra-3,5-diene-17-on as suitable intermediate preparation for the production of 11-fluoro-sbustituted steroids and to the method for the production thereof. For this purpose, 11α-hydroxyestr-4-en-3,17-dion is reacted in an organic non-protic solvent with 1 to 3 equivalents of n-nonafluorobutanesulfonyl fluoride and 3 to 5 equivalents of diazabicycloundecene (DBU) at -40 to -20°C and, after an aqueous processing step, 5 to 10 equivalents of acetic acid anhydride and 0.01 to 1 equivalent of a strong acid are added. The desired product precipitates immediately from the reaction solution and is obtained in a very high purity by filtration. The method is characterized by a very high yield, avoidance of a chromatographic purification of the product, a lower amount of waste, and considerably increased process throughput. The method according to the invention is thus particularly suitable for the production of 11β-fluoro-3-acetoxyestra-3,5-diene-17-on on a large technical scale.

    摘要翻译: 本发明涉及11β-氟-3-乙酰氧基雌甾-3,5-二烯-17-酮作为合适的用于生产11-氟 - 取代的类固醇的中间体制备物及其生产方法。 为此,将11α-羟基雌-4-烯-3,17-二酮在有机非质子溶剂中与1-至3当量的正九氟丁烷磺酰氟和3-5当量的二氮杂双环十一碳烯(DBU)在-40至 -20℃,在水处理步骤后,加入5至10当量的乙酸酐和0.01至1当量的强酸。 所需产物立即从反应溶液中沉淀出来并通过过滤以非常高的纯度获得。 该方法的特征在于产率非常高,避免了产物的色谱纯化,较少量的废物和显着增加的工艺产量。 因此,根据本发明的方法特别适用于大规模技术生产11β-氟-3-乙酰氧基雌甾-3,5-二烯-17-酮。