The 3-pyridylethanolamine L-757,793 is a potent beta(3) AR agonist (EC
50 6.3 nM, 70% activation) with 1,300- and 500-fold selectivity over b
inding to the beta(1) and beta(2) ARs, respectively. L-757,793 stimula
ted lipolysis in rhesus monkeys (ED50 0.2 mg/kg) with a maximum respon
se equivalent to that elicited by isoproterenol. (C) 1998 Elsevier Sci
ence Ltd. All rights reserved.