3-Phenylpropanoic acid-based phosphotyrosine (pTyr) mimetics: hit evolution to a novel orally active protein tyrosine phosphatase 1B (PTP1B) inhibitor.
CHEMMEDCHEM(2014)
摘要
Protein tyrosine phosphatase1B (PTP1B) is a promising therapeutic target for type2 diabetes. Herein, we report the evolution of a previously identified 3-phenylpropanoic acid-based PTP1B inhibitor to an orally active lead compound. A series of 3-phenylpropanoic acid-based PTP1B inhibitors were synthesized, and three of them, 3-(4-(9H-carbazol-9-yl)phenyl)-5-(3,5-di-tert-butyl-4-methoxyphenyl)-5-oxopentanoic acid (9), 3-(4-(9H-carbazol-9-yl)phenyl)-5-(4-bromo-[1,1-biphenyl]-4-yl)-5-oxopentanoic acid (10) and 3-(4-(9H-carbazol-9-yl)-2-fluorophenyl)-5-(4-cyclohexylphenyl)-5-oxopentanoic acid (16), showed IC50 values at sub-micromolar level. Further invivo evaluation indicated the sodium salt of 9 not only exhibited significant insulin-sensitizing and hypoglycemia effects, but also decreased the serum levels of triglyceride and total cholesterol in high-fat-diet-induced insulin resistance model mice. Preliminary invivo pharmacokinetic studies on the sodium salt of 9 revealed its pharmacokinetic profile after oral administration in rats. These results provide proof-of-concept for the dual effects of PTP1B inhibitors on both glucose and lipid metabolisms.
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关键词
3-phenylpropanoic acids,inhibitors,medicinal chemistry,protein tyrosine phosphatase 1B,type2 diabetes
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