title: Nonsteroidal selective glucocorticoid modulators: the effect of C-5 alkyl substitution on the transcriptional activation/repression profile of 2,5-dihydro-10-methoxy-2,2,4-trimethyl-1H-[1]benzopyrano[3,4-f]quinolines.
abstract: The preparation and characterization of a series of selective glucocorticoid receptor modulators are described. The preliminary structure-activity relationship of nonaromatic C-5 substitution on the tetracyclic quinoline core showed a preference for small lipophilic side chains. Proper substitution at this position maintained the transcriptional repression of proinflammatory transcription factors while diminishing the transcriptional activation activity of the ligand/glucocorticoid receptor complex. The optimal compounds described in this study were the allyl analogue 18 and cyclopentyl analogue 32. These candidates showed slightly less potent, highly efficacious E-selectin repression with significantly reduced levels of glucocorticoid response element activation in reporter gene assays vs prednisolone. Allyl analogue 18 was evaluated in vivo. An oral dose of 18 showed an ED(50) = 1.7 mg/kg as compared to 1.2 mg/kg for prednisolone in the Sephadex-induced pulmonary eosinophilia model and an ED(50) = 15 mg/kg vs 4 mg/kg for prednisolone in the carrageenan-induced paw edema model.
authors.affiliation: Immunologic Disease Research, Pharmaceutical Products Division, Abbott Laboratories, Abbott Park, Illinois 60064-3500, USA. steve.elmore@abbott.com
authors.forename: S W
authors.initials: SW
authors.lastname: Elmore
authors.forename: M J
authors.initials: MJ
authors.lastname: Coghlan
authors.forename: D D
authors.initials: DD
authors.lastname: Anderson
authors.forename: J K
authors.initials: JK
authors.lastname: Pratt
authors.forename: B E
authors.initials: BE
authors.lastname: Green
authors.forename: A X
authors.initials: AX
authors.lastname: Wang
authors.forename: M A
authors.initials: MA
authors.lastname: Stashko
authors.forename: C W
authors.initials: CW
authors.lastname: Lin
authors.forename: C M
authors.initials: CM
authors.lastname: Tyree
authors.forename: J N
authors.initials: JN
authors.lastname: Miner
authors.forename: P B
authors.initials: PB
authors.lastname: Jacobson
authors.forename: D M
authors.initials: DM
authors.lastname: Wilcox
authors.forename: B C
authors.initials: BC
authors.lastname: Lane
mesh_terms: D000818:Animals; D001578:Benzopyrans / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D001667:Binding, Competitive; D002351:Carrageenan; D002460:Cell Line; D002522:Chlorocebus aethiops; D003864:Depression, Chemical; D019040:E-Selectin / Q000235:genetics / Q000378:metabolism; D004487:Edema / Q000139:chemically induced / Q000473:pathology; D004804:Eosinophils / Q000473:pathology; D017930:Genes, Reporter; D006801:Humans; D007313:Insecta; D008156:Luciferases / Q000235:genetics / Q000378:metabolism; D008297:Male; D016328:NF-kappa B / Q000235:genetics / Q000378:metabolism; D011014:Pneumonia / Q000473:pathology; D011804:Quinolines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D051381:Rats; D017207:Rats, Sprague-Dawley; D011965:Receptors, Glucocorticoid / Q000187:drug effects* / Q000235:genetics; D020218:Response Elements; D013329:Structure-Activity Relationship; D018808:Transcription Factor AP-1 / Q000235:genetics / Q000378:metabolism; D014158:Transcription, Genetic / Q000187:drug effects
chemical_list: C476829:10-methoxy-5-(2-propenyl)-2,5-dihydro-2,2,4-trimethyl-1H-(1)benzopyrano(3,4-f)quinoline; C442813:5-cyclopentyl-2,5-dihydro-10-methoxy-2,2,4-trimethyl-1H-(1)benzopyrano(3,4-f)quinioline; D001578:Benzopyrans; D019040:E-Selectin; D016328:NF-kappa B; D011804:Quinolines; D011965:Receptors, Glucocorticoid; D018808:Transcription Factor AP-1; D002351:Carrageenan; D008156:Luciferases