NEW 3,20-DIOXO-4,9-DIENE-21-HYDROXYL STEROID DERIVATIVES,A PROCESS FOR PREPARING THEM,THEIR USE AS MEDICAMENTS AND THE PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

Novel DELTA 4,9-gonadiene-21-ol-3,20-diones of the formula I wherein X is selected from the group consisting of hydrogen and tritium, R1 is alkyl of 1 to 3 carbon atoms, R2 is alkyl of 1 to 12 carbon atoms and R3 is alkyl of 1 to 4 carbon atoms in the form of 21R or 21S epimers or mixtures thereof having progestomimetic and antiestrogenic properties, their preparation and novel intermediates.