Prodrugs of the selective progesterone receptor modulator (SPRM) (11.ß.,17.ß.)-17-hydroxy-11-(4-(methylsulphonyl)phenyl)-17-(pentafluoroethyl)estra-4,9-dien-3-one
This invention concerns Selective Progesterone Receptor Modulators (SPRM) in a prodrug form as well as their application in therapy. (3α, 11β,17β)-1 1-[4-(methylsulfonyl)phenyl]-17-(pentafluoroethyl)estra-4,9-diene-3,17-diol (Compound 1) is one of the invention prodrugs.