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J Enzyme Inhib Med Chem. 2013 Dec;28(6):1199-204. doi: 10.3109/14756366.2012.723206. Epub 2012 Sep 26.

Synthesis and characterization of 5,7-dihydroxyflavanone derivatives as novel protein tyrosine phosphatase 1B inhibitors.

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  • 1Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Ministry of Education, Yanbian University College of Pharmacy , Yanji , China.

Abstract

A series of 5,7-dihydroxyflavanone derivatives were synthesized and identified as reversible and competitive protein tyrosine phosphatase (PTP) 1B inhibitors with IC50 values in the micromolar range. Compound 4k had the most potent in vitro inhibition activity against PTP1B (IC50 = 2.37 ± 0.37 μM) and the greatest selectivity (3.7-fold) for PTP1B relative to T-cell protein tyrosine phosphatase. Cell-based studies revealed that 4k was membrane-permeable and enhanced insulin receptor tyrosine phosphorylation in CHO/hIR cells.

PMID:
23009604
[PubMed - indexed for MEDLINE]
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