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ID: ALA1156946
Journal: Bioorg Med Chem Lett
Title: Synthesis and SAR of derivatives based on 2-biarylethylimidazole as bombesin receptor subtype-3 (BRS-3) agonists for the treatment of obesity.
Authors: Liu J, He S, Jian T, Dobbelaar PH, Sebhat IK, Lin LS, Goodman A, Guo C, Guzzo PR, Hadden M, Henderson AJ, Pattamana K, Ruenz M, Sargent BJ, Swenson B, Yet L, Tamvakopoulos C, Peng Q, Pan J, Kan Y, Palyha O, Kelly TM, Guan XM, Howard AD, Marsh DJ, Metzger JM, Reitman ML, Wyvratt MJ, Nargund RP.
Abstract: This Letter describes a series of potent and selective BRS-3 agonists containing a biarylethylimidazole pharmacophore. Extensive SAR studies were carried out with different aryl substitutions. This work led to the identification of a compound 2-{2-[4-(pyridin-2-yl)phenyl]ethyl}-5-(2,2-dimethylbutyl)-1H-imidazole 9 with excellent binding affinity (IC(50)=18 nM, hBRS-3) and functional agonist activity (EC(50)=47 nM, 99% activation). After oral administration, compound 9 had sufficient exposure in diet induced obese mice to demonstrate efficacy in lowering food intake and body weight via BRS-3 activation.
CiteXplore: 20219372