Discovery of a substituted 8-arylquinoline series of PDE4 inhibitors: Structure–activity relationship, optimization, and identification of a highly potent, well tolerated, PDE4 inhibitor
作者:Dwight Macdonald、Anthony Mastracchio、Hélène Perrier、Daniel Dubé、Michel Gallant、Patrick Lacombe、Denis Deschênes、Bruno Roy、John Scheigetz、Kevin Bateman、Chun Li、Laird A. Trimble、Stephen Day、Nathalie Chauret、Deborah A. Nicoll-Griffith、Jose M. Silva、Zheng Huang、France Laliberté、Susana Liu、Diane Ethier、Doug Pon、Eric Muise、Louise Boulet、Chi Chung Chan、Angela Styhler、Stella Charleson、Joseph Mancini、Paul Masson、David Claveau、Donald Nicholson、Mervyn Turner、Robert N. Young、Yves Girard
DOI:10.1016/j.bmcl.2005.08.036
日期:2005.12
The discovery and SAR of a new series of substituted 8-arylquinoline PDE4 inhibitors are herein described. This work has led to the identification of several compounds with excellent in vitro and in vivo profiles, including a good therapeutic window of emesis to efficacy in several animal models. Typical optimized compounds from this series are potent inhibitors of PDE4 (IC50 < 1 nM) and also of LPS-induced TNF-alpha release in human whole blood (IC50 < 0.5 mu M). The same compounds are potent inhibitors of ovalbumin-induced bronchoconstriction in conscious guinea pigs (EC50 < 0.1 mg/kg ip) but require a dose of about 10 mg/kg po in the squirrel monkey to produce an emetic response. From this series of compounds, 23a (L-454,560) was identified as an optimized compound. (c) 2005 Elsevier Ltd. All rights reserved.