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Structure activity relationships of ?v integrin antagonists for pulmonary fibrosis by variation in aryl substituents

Adams, James; Anderson, Edward C.; Blackham, Emma E.; Chiu, Yin Wa Ryan; Clarke, Thomas; Eccles, Natasha; Gill, Luke A.; Haye, Joshua J.; Haywood, Harvey T.; Hoenig, Christian R.; Russell, Hannah L.; Smedley, Christopher; Tipping, William J.; Tongue, Tom; Wood, Charlotte C.; Yeung, Jason; Rowedder, James E.; Fray, Michael J.; Mcinally, Thomas; Macdonald, Simon J.F.

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Authors

James Adams

Edward C. Anderson

Emma E. Blackham

Yin Wa Ryan Chiu

Thomas Clarke

Natasha Eccles

Luke A. Gill

Joshua J. Haye

Harvey T. Haywood

Christian R. Hoenig

Hannah L. Russell

Christopher Smedley

William J. Tipping

Tom Tongue

Charlotte C. Wood

Jason Yeung

James E. Rowedder

Michael J. Fray

Simon J.F. Macdonald



Abstract

Antagonism of alphav beta6 is emerging as a potential treatment of idiopathic pulmonary fibrosis based on strong target validation. Starting from an alphav beta3 antagonist lead and through simple variation in the nature and position of aryl substituent, the discovery of compounds with improved alphav beta6 activity is described. The compounds also have physicochemical properties commensurate with oral bioavailability and are high quality starting points for a drug discovery programme. Compounds 33S and 43E1 are pan alphav antagonists having ca 100 nM potency against alphav beta3, alphav beta5, alphav beta6 and alphav beta8 in cell adhesion assays. Detailed structure activity relationships with these integrins are described which also reveal substituents providing partial selectivity (defined as at least a 0.7 log difference in pIC50 values between the integrins in question) for alphav beta3 and alphav beta5.

Journal Article Type Article
Publication Date Sep 19, 2014
Deposit Date Aug 12, 2015
Publicly Available Date Aug 12, 2015
Journal ACS Medicinal Chemistry Letters
Print ISSN 1948-5875
Electronic ISSN 1948-5875
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 5
Issue 11
DOI https://doi.org/10.1021/ml5002079
Keywords integrins, antagonist, pulmonary, fibrosis, ?v?6, ?v?3, ?-amino acids
Public URL https://nottingham-repository.worktribe.com/output/735584
Publisher URL http://pubs.acs.org/doi/abs/10.1021/ml5002079

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