Some steroidal cyclic eathers as antiestrogens.
D000818:Animals; D002625:Chemistry, Organic; D004987:Ethers / Q000494:pharmacology; D005260:Female; D051379:Mice; D009929:Organ Size / Q000187:drug effects; D055601:Organic Chemistry Phenomena; D011374:Progesterone / Q000494:pharmacology; D014599:Uterus / Q000187:drug effects
D004987:Ethers; D011374:Progesterone