A series of 4-hydroxy-3-methylsulfonanilido-1,2-diarylethylamines were prep
ared and evaluated for their human beta (3) adrenergic receptor agonist act
ivity. SAR studies led to the identification of BMS-196085 (25), a potent b
eta (3) full agonist (K-i = 21 nM, 95% activation) with partial agonist (45
%) activity at the beta (1) receptor. Based on its desirable in vitro and i
n vivo properties, BMS-196085 was chosen for clinical evaluation. (C) 2001
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