This invention relates to a process for the preparation of 10-(2-propynyl)-estr-4-ene-3,17-dione, whereby this compound is synthesized utilizing ketals prepared from the addition of 2,2-dimethyl-1,3-propanediol to the starting compound, 19-norandrost-5(10)-ene-3,17-dione (NAD). A new process for the addition of the propynyl group to steroid epoxides by means of higher order cuprates is also described herein.
本发明涉及一种制备 10-(2-
丙炔基)-
雌甾-4-烯-3,17-二酮的工艺,该化合物是利用
2,2-二甲基-1,3-丙二醇与起始化合物 19-去甲雄甾-5(10)-烯-3,17-二酮(
NAD)加成制备的
酮类合成的。本文还介绍了一种通过高阶
铜酸盐将
丙炔基加成甾体
环氧化物的新工艺。