An investigation into the structure–activity relationships associated with the systematic modification of the β2-adrenoceptor agonist indacaterol
作者:David Beattie、David Beer、Michelle E. Bradley、Ian Bruce、Steven J. Charlton、Bernard M. Cuenoud、Robin A. Fairhurst、David Farr、John R. Fozard、Diana Janus、Elizabeth M. Rosethorne、David A. Sandham、David A. Sykes、Alexandre Trifilieff、Katharine L. Turner、Elke Wissler
DOI:10.1016/j.bmcl.2012.07.096
日期:2012.10
The synthesis of a series of indacaterol analogues in which each of the three structural regions of indacaterol are modified in a systematic manner is described. Evaluation of the affinity of these analogues for the beta(2)-adrenoceptor identified the 3,4-dihydroquinolinone and 5-n-butylindanyl analogues to demonstrate the most similar profiles to indacaterol. An alpha-methyl aminoindane analogue was discovered to be 25-fold more potent than indacaterol, and functional studies revealed an atypical beta(2)-adrenoceptor activation profile for this compound consistent with that of a slowly dissociating 'super agonist'. (C) 2012 Elsevier Ltd. All rights reserved.