JOURNAL ARTICLE

Discovery of nonpeptide 3,4-dihydroquinazoline-4-carboxamides as potent and selective sst2 agonists

Jian Zhao, Shimiao Wang, Sangdon Han, Sun Hee Kim, Ana Karin Kusnetzow, Julie Nguyen, Elizabeth Rico-Bautista, Hannah Tan, Stephen F Betz, R Scott Struthers, Yunfei Zhu
Bioorganic & Medicinal Chemistry Letters 2020 September 1, 30 (17): 127391
32738999
Nonpeptide sst2 agonists can provide a new treatment option for patients with acromegaly, carcinoid tumors, and neuroendocrine tumors. Our medicinal chemistry efforts have led to the discovery of novel 3,4-dihydroquinazoline-4-carboxamides as sst2 agonists. This class of molecules exhibits excellent human sst2 potency and selectivity against sst1, sst3, sst4 and sst5 receptors. Leading compound 3-(3-chloro-5-methylphenyl)-6-(3-fluoro-2-hydroxyphenyl)-N,7-dimethyl-N-{[(2S)-pyrrolidin-2-yl]methyl}-3,4-dihydroquinazoline-4-carboxamide (28) showed no inhibition of major CYP450 enzymes (2C9, 2C19, 2D6 and 3A4) and weak inhibition of the hERG channel.

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