title: Synthesis, crystal and molecular structure of a 1,11-etheno-steroid: 3-methyoxy-1,11-ethenoestra-1,3,5(10),9(11)-tetraen-17-one.
mesh_terms: D001952:Bridged-Ring Compounds / Q000138:chemical synthesis; D055598:Chemical Phenomena; D002621:Chemistry; D003461:Crystallography; D004963:Estrenes / Q000138:chemical synthesis*; D008968:Molecular Conformation
chemical_list: D001952:Bridged-Ring Compounds; D004963:Estrenes