title: The molecular structure of 3-methoxy-9 (10 leads to 19) abeo- 1,3, 5, (10)-estratrien-17-one.
abstract: The crystal and molecular structure of 3-methoxy-9(10 leads to 19)abeo-1,3,5(10)-estratrien-17-one has been determined by X-ray analysis in order to ascertain the configuration at C(9). The seven-membered B-ring has a chair conformation and this causes the molecule to bow towards the alpha-face rather than towards the beta-face as in estradiol.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003460:Crystallization; D004963:Estrenes / Q000032:analysis*; D004970:Estrone / Q000031:analogs & derivatives*; D006718:Homosteroids; D008956:Models, Chemical; D008968:Molecular Conformation; D014961:X-Ray Diffraction
chemical_list: D004963:Estrenes; D006718:Homosteroids; D004970:Estrone