2010•Natural Product CommunicationsOpen access

Three New Insecticidal Sesquiterpene Polyol Esters from Celastrus angulatus

Shaopeng Wei, Minchang Wang, Zhiqin Ji, Baojun Shi, Shengkun Li, Jiwen Zhang

Abstract

Three new insecticidal sesquiterpene polyol esters with dihydro-beta-agarofuran skeletons, Kupiteng esters A (1), B (2) and C (3), were isolated from the methanol extracts of the root bark of Celastrus angulatus and their structures elucidated by analyses of MS and NMR spectral data. The insecticidal activities of these compounds against the 4th instar larvae of Mythimna separata were evaluated. The KD50 values of compounds 1-3, were 260.2, 445.5 and 1260.0 microg x g(-1), respectively.

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Key concepts: Mythimna separata, Sesquiterpene, Polyol, Bark (sound), Chemistry, Celastraceae, Stereochemistry, Organic chemistry