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<p>A new chromone, 5-hydroxy-2-methoxy-6,7,8-trimethylchromone (<b>1</b>), along with ten known compounds including 5,7-dimethoxychromone (<b>2</b>), 5-hydroxy-7-methoxychromone (<b>3</b>), 5-hydroxychromone (<b>4</b>), 5,7-dihydroxy-2,6-dimethylchromone (<b>5</b>), 5,7-dihydroxy-2,8-dimethyl-chromone (<b>6</b>), 5,7-dihydroxy-2,6,8- trimethylchromone (<b>7</b>), (3<i>S</i>,4<i>R</i>)-4-hydroxymellein (<b>8</b>), (3<i>S</i>,4<i>S</i>)-4-hydroxymellein (<b>9</b>), 4-hydroxymethyl-3,5-dimethyldihydro-2-furanone (<b>10</b>), and 3,4-dihydroxy-3-methyldihydro-2-furanone (<b>11</b>), were isolated from the roots of <i>Haworthia cooperi</i> var. <i>truncata</i> (Asphodelaceae). The structure of the new chromone derivative was elucidated by chemical and physical evidence.</p>

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Secondary Metabolites of Haworthia cooperi var. truncata

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • K. E. Chang,
  • S. T. Huang,
  • C. L. Kao,
  • M. J. Cheng,
  • C. Y. Chen,
  • H. T. Li

摘要

A new chromone, 5-hydroxy-2-methoxy-6,7,8-trimethylchromone (1), along with ten known compounds including 5,7-dimethoxychromone (2), 5-hydroxy-7-methoxychromone (3), 5-hydroxychromone (4), 5,7-dihydroxy-2,6-dimethylchromone (5), 5,7-dihydroxy-2,8-dimethyl-chromone (6), 5,7-dihydroxy-2,6,8- trimethylchromone (7), (3S,4R)-4-hydroxymellein (8), (3S,4S)-4-hydroxymellein (9), 4-hydroxymethyl-3,5-dimethyldihydro-2-furanone (10), and 3,4-dihydroxy-3-methyldihydro-2-furanone (11), were isolated from the roots of Haworthia cooperi var. truncata (Asphodelaceae). The structure of the new chromone derivative was elucidated by chemical and physical evidence.