2-Aryl-3-methyloctahydrophenanthrene-2,3,7-triols as potent dissociated glucocorticoid receptor agonists.

Abstract:

:A significant improvement in agonist activity of the previously described 2-aryloctahydrophenanthrene-2,3,7-triol series of dissociated glucocorticoid receptor agonists (DAGRs) was achieved by modifying the substitution at C3 from (S)-3-hydroxy to (R)-3-hydroxy-3-methyl. The IC50 of the prototype 13 in the efficacy assay measuring repression of IL-1 induced MMP-13 expression was 3.5 nM, exhibiting 87% of the maximal effect of dexamethasone (DEX). It displayed a dissociated profile by exhibiting 42% of the maximal effect of DEX in a mouse mammary tumor virus (MMTV) luciferase reporter transactivation assay. Compound 13 and analogues containing heterocyclic replacements for the C2 phenyl and modified B rings showed high repression of TNFα production in human whole blood, with IC50 values (43-167 nM) approaching the level of DEX (21 nM). On the basis of X-ray structures and force field calculations, the overall potency of this series was attributed to a favorable conformation of the C2α phenyl, induced by the neighboring C3α methyl.

journal_name

J Med Chem

authors

Chantigny YA,Murray JC,Kleinman EF,Robinson RP,Plotkin MA,Reese MR,Buckbinder L,McNiff PA,Millham ML,Schaefer JF,Abramov YA,Bordner J

doi

10.1021/jm501601b

subject

Has Abstract

pub_date

2015-03-26 00:00:00

pages

2658-77

issue

6

eissn

0022-2623

issn

1520-4804

journal_volume

58

pub_type

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