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<p>A new dihydrochalcone glycoside, 4′-hydroxy-6′-methoxy-3′,5′-dimethyl-<i>α</i>,<i>β</i>-dihydrochalcone-2′-<i>O</i>-<i>β</i>-D-glucopyranoside (<b>1</b>), and six known triterpenoids (<b>2–7</b>) were isolated from the ethyl acetate extract of <i>Empetrum nigrum</i> L. var. <i>japonicum</i> K. Koch. The structure was established by spectroscopic analyses, including 1D and 2D NMR (<sup>1</sup>H, <sup>13</sup>C, COSY, HMBC, and HSQC), UV, and HR-ESI-MS.</p>

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A New Dihydrochalcone Glycoside from Empetrum nigrum var. japonicum

  • 期刊论文

  • 发表日期：

    2025年5月16日

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  • Li-Qiu Sun,
  • Ming Zhao,
  • Yang-Hong Xu,
  • Dan Wang,
  • Zhi-Chun Shi,
  • Jun Li,
  • Xiao-Hong Zhang

摘要

A new dihydrochalcone glycoside, 4′-hydroxy-6′-methoxy-3′,5′-dimethyl-α,β-dihydrochalcone-2′-O-β-D-glucopyranoside (1), and six known triterpenoids (2–7) were isolated from the ethyl acetate extract of Empetrum nigrum L. var. japonicum K. Koch. The structure was established by spectroscopic analyses, including 1D and 2D NMR (1H, 13C, COSY, HMBC, and HSQC), UV, and HR-ESI-MS.