The invention relates to processes for obtaining steroids with a spirolactone group in position 17, particularly to industrially obtaining 6β,7β; 15β,16β-dimethylene-3-oxo-17α- pregn-4-ene-21,17-carbolactone, commonly known as Drospirenone, as well as to intermediates useful in said process.
该发明涉及获取17位上具有
螺内酯基团的类
固醇的过程,特别是工业上获取6β,7β; 15β,16β-二甲烯-3-酮-17α-孕-4-烯-21,17-碳内酯,通常称为Drospirenone,以及在该过程中有用的中间体。