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Bioorg Med Chem Lett. 2008 Oct 1;18(19):5206-8. doi: 10.1016/j.bmcl.2008.08.079. Epub 2008 Aug 28.

Isoxazolo[3,4-b]quinoline-3,4(1H,9H)-diones as unique, potent and selective inhibitors for Pim-1 and Pim-2 kinases: chemistry, biological activities, and molecular modeling.

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  • 1Cancer Research, Global Pharmaceutical R&D, Abbott Laboratories, R47S, AP10, 100 Abbott Park Road, Abbott Park, IL 60064, USA. yunsong.tong@abbott.com

Abstract

A series of isoxazolo[3,4-b]quinoline-3,4(1H,9H)-diones were synthesized as potent inhibitors against Pim-1 and Pim-2 kinases. The structure-activity-relationship studies started from a high-throughput screening hit and was guided by molecular modeling of inhibitors in the active site of Pim-1 kinase. Installing a hydroxyl group on the benzene ring of the core has the potential to form a key hydrogen bond interaction to the hinge region of the binding pocket and thus resulted in the most potent inhibitor, 19, with K(i) values at 2.5 and 43.5 nM against Pim-1 and Pim-2, respectively. Compound 19 also exhibited an activity profile with a high degree of kinase selectivity.

PMID:
18790640
[PubMed - indexed for MEDLINE]
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