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Secondary metabolites from the root of Ehretia longiflora and their biological activities

  • Yu Chieh Chien
  • , Chu Hung Lin
  • , Michael Y. Chiang
  • , Hsun Shuo Chang
  • , Chang Hui Liao
  • , Ih Sheng Chen
  • , Chien Fang Peng
  • , Ian Lih Tsai*
  • *Corresponding author for this work
  • Kaohsiung Medical University
  • National Sun Yat-sen University

Research output: Contribution to journal › Journal Article › peer-review

33 Scopus citations

Abstract

Bioassay-guided fractionation of the methanolic extract of the root of Ehretia longiflora (Boraginaceae) afforded eight compounds, ehretiquinone (1), ehretiolide (2), ehreticoumarin (3), ehretilactone A (4), ehretilactone B (5), ehretiamide (6), ehretine (7), and ehretiate (8), together with 12 known compounds (9-20). The relative configuration of 1 was determined by single crystal X-ray diffraction. Among the isolates, 1 and prenylhydroquinone (14) showed antitubercular activity against Mycobacterium tuberculosis strain H37Rv with MIC values of 25.0 and 26.2 μg/mL, respectively. Moreover, 1 exhibited inhibitory effects on N-formylmethionylleucylphenylalanine (fMLP)-induced superoxide production, with IC 50 value of 0.36 ± 0.03 μM.

Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalPhytochemistry
Volume80
DOIs
StatePublished - 08 2012

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Anti-inflammatory activity
  • Antitubercular activity
  • Boraginaceae
  • Ehretia longiflora
  • Root

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