A physical properties based approach for the exploration of a 4-hydroxybenzothiazolone series of β2-adrenoceptor agonists as inhaled long-acting bronchodilators
作者:David Beattie、Michelle Bradley、Andrew Brearley、Steven J. Charlton、Bernard M. Cuenoud、Robin A. Fairhurst、Peter Gedeck、Martin Gosling、Diana Janus、Darryl Jones、Christine Lewis、Clive McCarthy、Helen Oakman、Rowan Stringer、Roger J. Taylor、Andrew Tuffnell
DOI:10.1016/j.bmcl.2010.06.136
日期:2010.9
The chiral synthesis of a 4-hydroxybenzothiazolone based series of beta(2)-adrenoceptor agonists is described. Using this methodology a library of N-substituted analogues were prepared for the rapid identification of leads with the potential to be fast onset and long-acting inhaled bronchodilators with improved therapeutic margins. The design of the library to achieve the targeted profile was based upon lipophilicity and metabolism based hypotheses. This approach identified beta-phenethyl, alpha-substituted cyclopentyl and monoterpene N-substituents to be of particular interest for further evaluation, as exemplified by structures 19, 29 and 33, respectively. (C) 2010 Elsevier Ltd. All rights reserved.