Chin. J. Org. Chem. ›› 2019, Vol. 39 ›› Issue (7): 2106-2116.DOI: 10.6023/cjoc201811020 Previous Articles     Next Articles



侍术智a, 梁志鹏b, 孙建勇a, 石玉军a   

  1. a 南通大学化学化工学院 南通 226019;
    b 南通大学分析测试中心 南通 226019
  • 收稿日期:2018-11-14 修回日期:2019-01-08 发布日期:2019-03-08
  • 通讯作者: 石玉军

Novel Ester Derivatives of Lithocolic Acid-3-oxime and Their Inhibitory Activities against Protein Tyrosine Phosphatase 1B

Shi shuzhia, Liang zhipengb, Sun jiangyonga, Shi Yujuna   

  1. a College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019
  • Received:2018-11-14 Revised:2019-01-08 Published:2019-03-08
  • Contact: 10.6023/cjoc201811020

Protein tyrosine phosphatase-1B (PTP1B) is recognized as a potent target for the therapy of diabetes. Lithocolic acid (LCA), a kind of endogenic steroid, was reported as a moderate PTP1B inhibitor. In this paper, 3-hydroxyl of LCA was oxidized, followed by oximating and splicing with cinnamoyl to afford a novel series of derivatives, which were characterized by 1H NMR, 13C NMR and HRMS spectra. The results of bioassays exhibited that most of the titled compounds were active to PTP1B. Among them, compound 12b, the most potent one, has an IC50 of 0.79 µmol•L-1, about 15-fold more potent than the lead compound. Besides, it also has a selectivity of about 4-fold over T-cell protein tyrosine phosphatase (TCPTP).

Key words: PTP1B Inhibitor, TCPTP, lithocolic acid-3-oxime, Synthesis