A process for the preparation of a 13ß-alkyl-17O-ethinyl-17ß- alkanoyloxy-gon-4-en-3-one-oxime compound, a process for the preparation of pharmaceutical preparations containing such a compound as well as the formed pharmaceutical preparations.

摘要

3-Oximes of D-17 alpha -ethynyl-19-nortestosterone esters and derivatives thereof have pre- and post-coital activity for the suppression of fertility.