Chemical Constituents of the Heartwood of Dalbergia tonkinensis

  • Ninh The SonEmail author
  • Yoshiyasu Fukuyama
  • Nguyen Manh CuongEmail author

A new sesquiterpene, rel-(3R,6S,7S)-6α-hydroxycyclonerolidol (1), along with three known compounds, including neroplomacrol (2), naringin (3), and p-formylphenol (4), was isolated from the heartwood of Dalbergia tonkinensis. Their chemical structures were elucidated based on spectroscopic analysis.


Dalbergia tonkinensis heartwood sesquiterpene flavonoids 



This work was funded by the Vietnam National Foundation for Science and Technology Development (NAFOSTED) under Grant Nos. 104.01-2015.49 and the JSPS RONPAKU PhD program for FY 2017. We thank Simon Partridge, PhD, from Edanz Group ( for editing a draft of this manuscript.


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Authors and Affiliations

  1. 1.Faculty of Pharmaceutical SciencesTokushima Bunri UniversityTokushimaJapan
  2. 2.Institute of Natural Products ChemistryVietnam Academy of Science and Technology (VAST)HanoiVietnam

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