Adamantyl ethanone pyridyl derivatives : potent and selective inhibitors of human 11 beta-hydroxysteroid dehydrogenase type 1

Reference:

Su, X., Pradaux-Caggiano, F., Vicker, N., Thomas, M. P., Halem, H., Culler, M. D. and Potter, B. V. L., 2011. Adamantyl ethanone pyridyl derivatives : potent and selective inhibitors of human 11 beta-hydroxysteroid dehydrogenase type 1. ChemMedChem, 6 (9), pp. 1616-1629.

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Official URL:

http://dx.doi.org/10.1002/cmdc.201100182

Abstract

Elevated levels of active glucocorticoids have been implicated in the development of several phenotypes of metabolic syndrome, such as type 2 diabetes and obesity. 11 beta-Hydroxysteroid dehydrogenase type 1 (11 beta-HSD1) catalyses the intracellular conversion of inactive cortisone to cortisol. Selective 11 beta-HSD1 inhibitors have shown beneficial effects in various conditions, including diabetes, dyslipidemia and obesity. A series of adamantyl ethanone pyridyl derivatives has been identified, providing potent and selective inhibitors of human 11 beta-HSD1. Lead compounds display low nanomolar inhibition against human and mouse 11b-HSD1 and are selective for this isoform, with no activity against 11 beta-HSD2 and 17 beta-HSD1. Structure-activity relationship studies reveal that an unsubstituted pyridine tethered to an adamantyl ethanone motif through an ether or sulfoxide linker provides a suitable pharmacophore for activity. The most potent inhibitors have IC(50) values around 34-48 nm against human 11 beta-HSD1, display reasonable metabolic stability in human liver microsomes, and weak inhibition of key human CYP450 enzymes.

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