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<p>The known compounds cyclosieversioside E (<b>2</b>) and cyclounifolioside B (<b>3</b>) and the new cycloartane glycoside macronoside A (<b>1</b>) or 16-<i>O</i>-acetyl-20<i>R</i>,24<i>S</i>-epoxycycloartane-3<i>β</i>,6<i>α</i>,16<i>β</i>,25-tetraol 3-<i>O</i>-<i>β</i>-D-xylopyranoside were isolated from roots of the plant <i>Astragalus macronyx</i>. The structure of the last was proved based on chemical transformations, <sup>1</sup>H NMR and <sup>13</sup>C NMR data, and 2D spectra (HMBC, HSQC, COSY, ROESY).</p>

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New Cycloartane Glycoside from Astragalus macronyx

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • T. N. Kaypnazarov,
  • A. R. Khurramov,
  • F. A. Kengesbaeva,
  • Kh. M. Bobakulov,
  • T. Kh. Naubeev,
  • N. Sh. Ramazonov,
  • F. Kh. Allaberdiev

摘要

The known compounds cyclosieversioside E (2) and cyclounifolioside B (3) and the new cycloartane glycoside macronoside A (1) or 16-O-acetyl-20R,24S-epoxycycloartane-3β,6α,16β,25-tetraol 3-O-β-D-xylopyranoside were isolated from roots of the plant Astragalus macronyx. The structure of the last was proved based on chemical transformations, 1H NMR and 13C NMR data, and 2D spectra (HMBC, HSQC, COSY, ROESY).