文献类型: 外文期刊
作者: WU Han-Kui;MAO Yan-Jun;SUN Shan-Shan;XU Zhi-Yong;MA Ya;CAO Jin-Xia;QI He;WU Zhi-Fu;LI Gang;YANG Wei-Hua
作者机构:
关键词: Leonurus japonicus;Leojaponic acid;Terpenoid
期刊名称: CHINESE JOURNAL OF NATURAL MEDICINES
ISSN: 2095-6975
年卷期: 2016 年 14 卷 4 期
页码:
收录情况: SCI
摘要: The present study aimed at isolation and purification of the bioactive terpenoids from the herb of Leonurus japonicus by chromatographic separations such as silica gel, sephadex LH-20 and C-18 reversed phase silica gel, as well as preparative HPLC. As a result, leojaponic acids A (1, C17H24O4) and B (2, C18H26O4), two homologous terpenoids, together with (-)-loliolide (3), 1-(3-ethylphenyl) ethane-1, 2-diol (4) and dibutyl phthalate (5), were isolated from the EtOH extract of L. japonicus. All the chemical structures of the isolates were elucidated on the basis of 1D and 2D NMR analyses. Compounds 1 and 2 were new terpenoids, and Compounds 3 and 4 were isolated and identified for the first time from this plant. In addition, the alpha-glucosidase and tyrosinase inhibitory activity of the new compounds were evaluated.
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