Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -steroids
    11.
    发明授权
    Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -steroids 失效
    制备3β7β-二羟基-DTATA5-类固醇的方法

    公开(公告)号:US4614616A

    公开(公告)日:1986-09-30

    申请号:US536076

    申请日:1983-09-26

    摘要: A process for preparing a 3.beta.,7.beta.-dihydroxy-.DELTA..sup.5 -steroid of the formula ##STR1## wherein Q is ##STR2## and R.sub.1 is hydrogen, trimethylacetyl, tert-butyldimethylsilyl, dimethyl-2-(3-methylbutyl)silyl or tribenzylsilyl, comprises fermenting a 3.beta.-hydroxy-.DELTA..sup.5 -steroid of the formula ##STR3## wherein Q is as defined above, andR.sub.2 is hydrogen or alkanoyl of 2-6 carbon atoms, with a culture of Botryodiplodia malorum to obtain the corresponding 3.beta.,7.beta.-dihydroxy-.DELTA..sup.5 -steroid; and, optionally, reacting the resultant product with trimethylacetic anhydride, tert-butyldimethylsilyl chloride, dimethyl-2-(3-methylbutyl)silyl chloride, or tribenzylsilyl chloride.

    摘要翻译: 一种制备式“IMAGE”的3β,7β-二羟基-TATA5-类固醇的方法,其中Q为R 1,R 1为氢,三甲基乙酰基,叔丁基二甲基甲硅烷基,二甲基-2-(3-甲基丁基)甲硅烷基 或三苄基甲硅烷基,包括发酵式为“IMAGE”的3β-羟基-TATA5-类固醇,其中Q如上所定义,并且R 2是2-6个碳原子的氢或链烷酰基,具有葡萄孢属(Botryodiplodia malorum)的培养物, 相应的3β,7β-二羟基-DTATA5-类固醇; 和任选地使所得产物与三甲基乙酸酐,叔丁基二甲基甲硅烷基氯,二甲基-2-(3-甲基丁基)甲硅烷基氯或三苄基甲硅烷基氯反应。