title: Identification of highly efficacious glucocorticoid receptor agonists with a potential for reduced clinical bone side effects.
abstract: Synthesis and structure-activity relationship (SAR) of a series of nonsteroidal glucocorticoid receptor (GR) agonists are described. These compounds contain "diazaindole" moieties and display different transcriptional regulatory profiles in vitro and are considered "dissociated" between gene transrepression and transactivation. The lead optimization effort described in this article focused in particular on limiting the transactivation of genes which result in bone side effects and these were assessed in vitro in MG-63 osteosarcoma cells, leading to the identification of (R)-18 and (R)-21. These compounds maintained anti-inflammatory activity in vivo in collagen induced arthritis studies in mouse but had reduced effects on bone relevant parameters compared to the widely used synthetic glucocorticoid prednisolone 2 in vivo. To our knowledge, we are the first to report on selective glucocorticoid ligands with reduced bone loss in a preclinical in vivo model.
authors: Department of Medicinal Chemistry, Department of Immunology and Inflammation, Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc. , 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States.
authors: Christian
authors: C
authors: Harcken
authors: Doris
authors: D
authors: Riether
authors: Daniel
authors: D
authors: Kuzmich
authors: Pingrong
authors: P
authors: Liu
authors: Raj
authors: R
authors: Betageri
authors: Mark
authors: M
authors: Ralph
authors: Michel
authors: M
authors: Emmanuel
authors: Jonathan T
authors: JT
authors: Reeves
authors: Angela
authors: A
authors: Berry
authors: Donald
authors: D
authors: Souza
authors: Richard M
authors: RM
authors: Nelson
authors: Alison
authors: A
authors: Kukulka
authors: Tazmeen N
authors: TN
authors: Fadra
authors: Ljiljana
authors: L
authors: Zuvela-Jelaska
authors: Roger
authors: R
authors: Dinallo
authors: Jörg
authors: J
authors: Bentzien
authors: Gerald H
authors: GH
authors: Nabozny
authors: David S
authors: DS
authors: Thomson
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000187:drug effects*; D045744:Cell Line, Tumor; D005260:Female; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D011965:Receptors, Glucocorticoid / Q000819:agonists*; D013329:Structure-Activity Relationship
chemical_list: D011965:Receptors, Glucocorticoid