A novel process for making estra-4,9(10)-diene-3,17-dione steroids from readily available 19-nor-androst-4-ene-3-one steroids by a straightforward three-step process. Products of this process are important intermediates in the preparation of biologically active substances.
一种新型工艺,通过简单的三步过程从易得的19-去甲雄烷-4-烯-3-
酮类固醇制备出
雌甾-4,9(10)-二烯-3,17-二
酮类固醇。该过程的产物是制备
生物活性物质的重要中间体。