Journal of Natural Medicines

, Volume 71, Issue 1, pp 96–104 | Cite as

Constituents from the leaves of Clausena lansium and their anti-inflammatory activity

  • De-Yang Shen
  • Ping-Chung Kuo
  • Shiow-Chyn Huang
  • Tsong-Long Hwang
  • Yu-Yi Chan
  • Po-Chuen Shieh
  • Nguyen Thi Ngan
  • Tran Dinh Thang
  • Tian-Shung Wu
Original Paper


Five new acyclic amides, clausenalansamides C-G (15), clausenaline G (6) and (±)-5-(4-methylphenyl)-γ-valerolactone (7) reported from the natural source for the first time, were characterized from the leaves of Clausena lansium. Their structures were established by spectroscopic and spectrometric methods, and the absolute configurations of new compounds 15 were determined by electronic circular dichroism and single-crystal X-ray diffraction analyses. Eighteen compounds were evaluated for their anti-inflammatory activity and only imperatorin (11) and wampetin (12) displayed significant inhibition of fMLP/CB-induced superoxide anion generation with IC50 values of 1.7 ± 0.3 and 6.8 ± 1.1 μM, respectively.


Clausenalansamide Electronic circular dichroism Single-crystal X-ray diffraction analysis Anti-inflammatory Superoxide anion generation 



This study was sponsored by the Ministry of Science and Technology, Taiwan, ROC granted to T.-S. Wu, and supported in part by the Vietnam National Foundation for Science and Technology Development (Nr. 104.01-2010.27), and Chang Gung Memorial Hospital (CMRPD1B0481~3, CMRPD1D0281~3, and BMRP450 to H-L Hwang). We also thank Associate Prof. Dr. Tran Huy Thai (Institute of Ecology and Biological Resources, Vietnamese Academy of Science and Technology, Vietnam) for the identification of the plant materials.

Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interest.

Supplementary material

11418_2016_1033_MOESM1_ESM.pdf (2.1 mb)
Supplementary material 1 (PDF 2175 kb)


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Copyright information

© The Japanese Society of Pharmacognosy and Springer Japan 2016

Authors and Affiliations

  • De-Yang Shen
    • 1
  • Ping-Chung Kuo
    • 1
  • Shiow-Chyn Huang
    • 2
  • Tsong-Long Hwang
    • 3
    • 4
    • 5
  • Yu-Yi Chan
    • 6
  • Po-Chuen Shieh
    • 7
  • Nguyen Thi Ngan
    • 8
  • Tran Dinh Thang
    • 8
  • Tian-Shung Wu
    • 1
    • 7
  1. 1.School of Pharmacy, National Cheng Kung University Hospital, College of MedicineNational Cheng Kung UniversityTainanROC
  2. 2.Department of PharmacyChia-Nan University of Pharmacy and ScienceTainanROC
  3. 3.Graduate Institute of Natural Products, College of MedicineChang Gung UniversityTaoyuanROC
  4. 4.Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry TechnologyCollege of Human Ecology, Chang Gung University of Science and TechnologyTaoyuanROC
  5. 5.Department of AnesthesiologyChang Gung Memorial HospitalTaoyuanROC
  6. 6.Department of BiotechnologySouthern Taiwan University of Science and TechnologyTainanTaiwan
  7. 7.Department of PharmacyTajen UniversityPingtungROC
  8. 8.Department of ChemistryVinh UniversityVinh CityVietnam

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