title: Synthesis and biological activity of trans-2,3-dihydroraloxifene.
abstract: The synthesis and biological evaluation of trans-2,3-dihydroraloxifene, 2, is described. The synthesis proceeds in 8 steps in 20% overall yield. Relative trans 2,3-stereochemistry is definitively established in ester 6, which is converted to the title compound via derivatization, Grignard addition, and deprotection. Evaluation in vitro shows the compound to be a potent selective estrogen receptor modulator (SERM).
mesh_terms: D001667:Binding, Competitive; D002455:Cell Division / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D004965:Estrogen Antagonists / Q000494:pharmacology*; D008958:Models, Molecular; D010880:Piperidines / Q000138:chemical synthesis* / Q000737:chemistry; D020849:Raloxifene Hydrochloride; D014407:Tumor Cells, Cultured