title: 9,11-Seco steroids derived from estradiol 3-methyl ether.
mesh_terms: D000818:Animals; D003270:Contraceptive Agents / Q000138:chemical synthesis*; D004958:Estradiol / Q000138:chemical synthesis*; D004967:Estrogens / Q000138:chemical synthesis*; D005260:Female; D008722:Methods; D008738:Methyl Ethers; D051381:Rats; D012632:Secosteroids / Q000138:chemical synthesis*; D013237:Stereoisomerism; D013329:Structure-Activity Relationship
chemical_list: D003270:Contraceptive Agents; D004967:Estrogens; D008738:Methyl Ethers; D012632:Secosteroids; D004958:Estradiol