作者:Alexey B Dyatkin、William J Hoekstra、William A Kinney、Maria Kontoyianni、Rosemary J Santulli、Edward S Kimball、M Carolyn Fisher、Stephen M Prouty、William M Abraham、Patricia Andrade-Gordon、Dennis J Hlasta、Wei He、Pamela J Hornby、Bruce P Damiano、Bruce E Maryanoff
DOI:10.1016/j.bmcl.2003.11.063
日期:2004.2
The design, synthesis, and biological activity of novel alpha(4)beta(1) and alpha(4)beta(7) integrin antagonists, containing a bridged azabicyclic nucleus, are reported. Conformational analysis of targets containing an azabicyclo[2.2.2]octane carboxylic acid and known integrin antagonists indicated that this azabicycle would be a suitable molecular scaffold. Variation of substituents on the pendant arylsulfonamide and phenylalanine groups resulted in potent alpha(4)beta(1)-selective and dual alpha(4)beta(1)/alpha(4)beta(7) antagonists. Potent compounds 11i, 11h, and 14 were effective in the antigen-sensitized sheep model of asthma. (C) 2003 Elsevier Science Ltd. All rights reserved. (C) 2003 Elsevier Ltd. All rights reserved.