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  • Title: Synthesis and evaluation of novel phenoxypropanolamine derivatives containing acetanilides as potent and selective beta3-adrenergic receptor agonists.
    Author: Maruyama T, Onda K, Hayakawa M, Seki N, Takahashi T, Moritomo H, Suzuki T, Matsui T, Takasu T, Nagase I, Ohta M.
    Journal: Bioorg Med Chem; 2009 May 01; 17(9):3283-94. PubMed ID: 19362005.
    Abstract:
    In the search for potent and selective human beta3-adrenergic receptor (AR) agonists as potential drugs for the treatment of obesity and noninsulin-dependent (type II) diabetes, a novel series of phenoxypropanolamine derivatives containing acetanilides were prepared and their biological activities were evaluated at the human beta3-, beta2-, and beta1-ARs. Several of the analogues (21a, 21b, and 27a) exhibited potent agonistic activity at the beta3-AR. Among the compounds described herein, the N-methyl-1-benzylimidazol-2-ylacetanilide derivative (21b) was found to be the most potent and selective beta3-AR agonist, with an EC(50) value of 0.28 microM and no agonistic activity for either the beta1- or beta2-AR. In addition, 21b showed significant hypoglycemic activity in a rodent diabetic model.
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