A series of thiazole benzenesulfonamide-substituted 3-pyridylethanolamines
was prepared and evaluated for their human beta(3) adrenergic receptor agon
ist activity. Incorporation of aryl and heteroaryl substitution in the 4-po
sition of the thiazole ring resulted in a number of highly potent and selec
tive beta(3) agonists. Results of preliminary in vivo evaluation of several
of these compounds is described. (C) 2000 Elsevier Science Ltd. All rights
reserved.