Constituents of the seeds of Cassia tora with inhibitory activity on soluble expoxide hydrolease

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• 作者：Ga Young Lee^a ; ¹ ; Jang Hoon Kim^a ; ^b ; ¹ ; Seung-Kook Choi^b ; Young Ho Kim^a ; ^{yhk@cnu.ac.kr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Cassia tora ; Leguminosae ; Soluble epoxide hydrolase ; Uncompetitive behavior ; Molecular docking
• 刊名：Bioorganic & Medicinal Chemistry Letters
• 出版年：2015
• 出版时间：15 November 2015
• 年：2015
• 卷：25
• 期：22
• 页码：5097-5101
• 全文大小：852 K

文摘

Efforts to extract soluble epoxide hydrolase (sEH) inhibitors from food sources through bioactivity-guided fractionation of Cassia tora seed extracts led to the isolation of one new compound, 1, and 15 known compounds, 2–16. Structural elucidations were performed using 1D/2D NMR spectroscopy and mass spectrometry. Compounds 1, 3, 4, 6, 10, 11, and 13–16 exhibited inhibitory activities on sEH with IC₅₀ values of 2.2 ± 2.1–40.6 ± 3.4 μM. Compound 13 was particularly active and exhibited a reversible-uncompetitive behavior in enzyme kinetic studies. A binding site on the enzyme for compound 13 was also predicted by Autodock 4.2 simulations.