Chemistry of Natural Compounds

, Volume 48, Issue 4, pp 583–586 | Cite as

seco-Kaurane skeleton diterpenoids from Croton oblongifolius

  • Sunisa Suwancharoen
  • Orawan Chonvanich
  • Sophon Roengsumran
  • Surachai Pornpakakul

A new seco-kaurane type diterpenoid, ent-3,4-seco-17-oxo-kaur-4(19),15(16)-dien-3-oic acid, and a known compound, ent-3,4-seco-kaur-4(19),16(17)-dien-3-oic acid, were isolated from the stem bark of Croton oblongifolius. The structures of these compounds were established on the basis of spectroscopic data.


Croton oblongifolius diterpenoid seco-kaurane 



We thank the National Research University Project of CHE, the Ratchadaphiseksomphot Endowment Fund (FW1022B), and the Higher Education Commission Grants for Graduate Dissertation, Chulalongkorn University, for financial support. The Department of Chemistry, Faculty of Science, and the Rachadapiseksompoj Endowment, Chulalongkorn University, are also gratefully acknowledged.


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Copyright information

© Springer Science+Business Media, Inc. 2012

Authors and Affiliations

  • Sunisa Suwancharoen
    • 1
  • Orawan Chonvanich
    • 2
  • Sophon Roengsumran
    • 1
  • Surachai Pornpakakul
    • 1
  1. 1.Research Centre for Bioorganic Chemistry, Department of Chemistry, Faculty of ScienceChulalongkorn UniversityBangkokThailand
  2. 2.Program of Biotechnology, Faculty of ScienceChulalongkorn UniversityBangkokThailand

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