Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (3): 405.

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Studies on Derivatives of Teucvidin from Teucrium quadrifarium

CHEN Huan-Ming, XIE Ning, MIN Zhi-Da   

  1. Department of Phytochemistry, China Pharmaceutical University, Nanjing 210009
  • Received:1995-03-31 Online:1996-03-24 Published:1996-03-24

Abstract: Eight derivatives of teucvidin,a known nor-clerodane diterpenoid isolated from Teucrium quadrifarium(Labiatae)were prepared by catalytic hydrogenation,ester exchange and hydrolysis.Their structures were established by spectroscopic means.Preliminary bioassay indicated that teucvidin and its derivatives,especially Ⅱ and Ⅳ a showed significant antifeedant activities against larvae of Leucania separata (Walker).

Key words: Teucvidin, Nor-clerodane diterpenoid, Derivatives, Insect antifeedant activity

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