CL316243 is a highly potent selective β3-adrenoceptor agonist with a EC50 of 3 nM, but is an extremely poor to β1/2- receptors[1].CL316243 is a effective stimulant of adipocyte lipolysis and increases brown adipose tissue thermogenesis and metabolic rate[2]. CL316243 has the potential for the treatment obesity, diabetes and urge urinary incontinence[3].