Abstract
A series of biphenyl carbaldehyde oximes (6) was prepared and shown to have significant selectivity for the estrogen receptor-beta (ERbeta). The exploitation of the oxime moiety as a hydrogen bond donating group, which mimicked the C-ring of genistein makes these compounds unique. Molecular modeling studies showed the oxime moiety hydrogen bonding to the histidine residue, which was supported by the structure-activity relationships. The most potent compounds in this study had IC50 values in a radioligand binding assay of between 8-35 nM. Among the most selective compounds were 6i and 6s (49- and 31-fold ERbeta selective, respectively).
MeSH terms
-
Binding, Competitive
-
Biphenyl Compounds / chemical synthesis
-
Biphenyl Compounds / chemistry
-
Biphenyl Compounds / pharmacology
-
Cell Line, Tumor
-
Estrogen Receptor alpha / agonists
-
Estrogen Receptor alpha / antagonists & inhibitors
-
Estrogen Receptor beta / agonists*
-
Estrogen Receptor beta / antagonists & inhibitors*
-
Gene Expression Regulation / genetics
-
Humans
-
Keratins / genetics
-
Ligands
-
Molecular Conformation
-
Molecular Structure
-
Oximes / chemical synthesis*
-
Oximes / chemistry
-
Oximes / pharmacology*
-
Quantitative Structure-Activity Relationship
-
RNA, Messenger / analysis
-
Radioligand Assay
Substances
-
4-hydroxy-biphenyl-carbaldehyde oxime
-
Biphenyl Compounds
-
Estrogen Receptor alpha
-
Estrogen Receptor beta
-
Ligands
-
Oximes
-
RNA, Messenger
-
Keratins