Steroidal 3,5-dienes.
D000736:Androstenes / Q000138:chemical synthesis; D000818:Animals; D003281:Contraceptives, Postcoital / Q000138:chemical synthesis*; D003283:Contraceptives, Postcoital, Synthetic / Q000138:chemical synthesis*; D006224:Cricetinae; D004963:Estrenes / Q000138:chemical synthesis; D005260:Female; D006067:Gonanes / Q000138:chemical synthesis; D008647:Mesocricetus; D011247:Pregnancy; D013256:Steroids / Q000138:chemical synthesis*; D013329:Structure-Activity Relationship
D000736:Androstenes; D003281:Contraceptives, Postcoital; D003283:Contraceptives, Postcoital, Synthetic; D004963:Estrenes; D006067:Gonanes; D013256:Steroids