丙二酸类PTP1B抑制剂的设计、合成及活性研究
Design, synthesis and evaluation of malonic acid-based PTP1B inhibitors
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摘要:
蛋白酪氨酸磷酸酶 (protein tyrosine phosphatase, PTP) 1B是治疗2型糖尿病 (T2DM) 及肥胖症的潜在靶点。磷酸酪氨酸 (pTyr) 是PTP1B去磷酸化作用的底物, 本文以丙二酸基团模拟pTyr分子中的磷酸酯, 设计合成了丙二酸类PTP1B抑制剂1~7。抑酶活性评价显示, 化合物3和4对人重组PTP1B的半数抑制浓度IC50分别为7.66和1.88 μmol·L−1。
Abstract:Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. Phosphotyrosine (pTyr) is the substrate for PTP1B dephosphorylation. Malonic acid moiety was used herein as a mimic of the phosphate group in pTyr, and novel malonic acid derivatives 1−7 were designed, synthesized and evaluated as PTP1B inhibitors. Results from enzymatic assays indicated that compounds 3 and 4 exhibited potent inhibition against human recombinant PTP1B with IC50 values of 7.66 and 1.88 μmol·L−1, respectively.
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