5-n-Pentyl oxadiazole substituted benzenesulfonamide 8 is a potent and sele
ctive beta(3) adrenergic receptor agonist (beta(3) EC50 = 23 nM, beta(1) IC
50 = 3000 nM, beta(2) IC50 = 3000 nM). The compound has high oral bioavaila
bility in dogs (62%) and rats (36%) and is among the: most orally bioavaila
ble beta(3) adrenergic receptor agonists reported to date. (C) 2000 Elsevie
r Science Ltd. All rights reserved.