醉酒后少妇被疯狂内射视频,一本色道久久综合一,在线天堂新版资源www在线下载,中文字幕乱人伦高清视频,中字幕视频在线永久在线观看免费

Archive > Volume 2 Issue 3 > 2010,2(3):165-167. DOI:10.3969/j.issn.1674-6384.2010.03.001 Prev Next

Letter

A New Phenolic Acid from Rhizomes of Abacopteris penangiana

  • Article
  • Figures
  • Metrics
  • Preview PDF
  • Reference
  • Related
  • Cited by
  • Materials
    摘要:


    Abstract:
    Objective To study the chemical constituents of Abacopteris penangiana. Methods The compounds were separated and purified by various chromatographic techniques and their structures were elucidated on the basis of physiochemical properties and spectroscopic methods. Results Seven compounds were purified and their structures were identified as: (7′Z)-3-O-(3,4-dihydroxy phenylethenyl)-caffeic acid (1), caffeicin B (2), matteucinol (3), protocatechuic acid (4), p-methoxybenzoic acid (5), β-sitosterol (6), and daucosterol (7). Conclusion Compound 1 is a new phenolic acid compound named abacopteric acid, and the other compounds are isolated from the plant for the first time.

    關(guān)鍵詞:


    Keywords:


    Project Supported:
    Clc Number:

WeChat

Mobile website