Tetrahydrofluorenones with conformationally restricted side chains as selective estrogen receptor beta ligands
摘要:
A series of 2-9a bridged tetrahydrofluorenone derivatives were prepared which exhibited significant binding affinity for ER beta and were highly selective. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis Of 1,5-Disubstituted-2-Hydroxy-Gibbatetraen-6-Ones
申请人:Wilkening R. Robert
公开号:US20070293706A1
公开(公告)日:2007-12-20
1,5-disubstituted-2-hydroxy-gibbatetraen-6-ones are useful as estrogen receptor modulators and as precursors to estrogen receptor modulators. The current invention provides a method for the synthesis of 1,5-disubstituted-2-hydroxy-gibbatetraen-6-ones from simple indanone starting materials via a Robinson-type annulation followed by an internal alkylation reaction. This invention further describes the novel use of a fluoroethyl substituent as a latent alkylating group for an internal cyclization reaction.
Synthesis and derivatization of a series of substituted tetrahydrofluorenone analogs giving potent, ERbeta subtype selective ligands are described. Several analogs possessing ERbeta binding affinities comparable to 17beta-estradiol but with greater than 75-fold selectivity over ERalpha are reported.