Structural Modification of19-Norprogesterone I: 17-a-Substituted,11-alpha-Substituted-4Aryl and 21-Substituted 19-Norpregnadienedione As New Antiprogestational Agents
Patent Cooperation Treaty
PCT/US01/08681
Filed on 2001-03-16
PCT/US01/08681
Filed on 2001-03-16