申请人:Schering Aktiengesellschaft
公开号:US04614616A1
公开(公告)日:1986-09-30
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, and R.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.
制备一种式子为##STR1##的3.beta.,7.beta.-二羟基-.DELTA..sup.5 -类固醇的过程,其中Q为##STR2##,R.sub.1为氢、三甲基乙酰、叔丁基二甲基硅烷基、二甲基-2-(3-甲基丁基)硅烷基或三苯基硅烷基,包括将式子为##STR3##的3.beta.-羟基-.DELTA..sup.5 -类固醇与Botryodiplodia malorum菌株培养物发酵以获得相应的3.beta.,7.beta.-二羟基-.DELTA..sup.5 -类固醇;并且,可选择性地将所得产物与三甲基乙酸酐、叔丁基二甲基硅氯化物、二甲基-2-(3-甲基丁基)硅氯化物或三苯基硅氯化物反应。