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<p>The herb of <i>Nonea rossica</i> Steven (Boraginaceae) contained 23 compounds, including new acetates of astragalin and trifolin (<b>1–5</b>). UV and NMR spectroscopy and mass spectrometry found that the new flavonoids were kaempferol 3-<i>O</i>-(3′′-<i>O</i>-acetyl)-<i>β</i>-D-glucopyranoside (noneaside B, <b>1</b>), kaempferol 3-<i>O</i>-(3′′-<i>O</i>-acetyl)-<i>β</i>-D-galactopyranoside (noneaside C, <b>2</b>), kaempferol 3-<i>O</i>-(4′′-O-acetyl)-<i>β</i>-Dglucopyranoside (noneaside D, <b>3</b>), kaempferol 3-<i>O</i>-(4′′-<i>O</i>-acetyl)-<i>β</i>-D-galactopyranoside (noneaside E, <b>4</b>), and kaempferol 3-<i>O</i>-(3′′,6′′-di-<i>O</i>-acetyl)-<i>β</i>-D-galactopyranoside (noneaside F, <b>5</b>).</p>

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New Acetates of Astragalin and Trifolin from Nonea rossica

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • D. N. Olennikov,
  • M. E. Kartashova,
  • V. V. Velichko,
  • D. S. Kruglov,
  • N. K. Chirikova

摘要

The herb of Nonea rossica Steven (Boraginaceae) contained 23 compounds, including new acetates of astragalin and trifolin (1–5). UV and NMR spectroscopy and mass spectrometry found that the new flavonoids were kaempferol 3-O-(3′′-O-acetyl)-β-D-glucopyranoside (noneaside B, 1), kaempferol 3-O-(3′′-O-acetyl)-β-D-galactopyranoside (noneaside C, 2), kaempferol 3-O-(4′′-O-acetyl)-β-Dglucopyranoside (noneaside D, 3), kaempferol 3-O-(4′′-O-acetyl)-β-D-galactopyranoside (noneaside E, 4), and kaempferol 3-O-(3′′,6′′-di-O-acetyl)-β-D-galactopyranoside (noneaside F, 5).