The invention relates to a new process for the preparation of 21-hydroxy-20-keto-steroids from 17-isocyano-sulfonylmethylene-steroids whereby simultaneously an unsaturated bond is introduced between C16 and C17. Furthermore, the invention relates to new intermediate compounds formed in this process and their preparation.
本发明涉及一种从 17-异
氰基磺酰亚甲基类
固醇制备 21-羟基-20-
酮类固醇的新工艺,在该工艺中,同时在 C16 和 C17 之间引入不饱和键。此外,本发明还涉及在该工艺中形成的新中间化合物及其制备方法。