Neoclerodanes from Teucrium orientale

概要

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Two new neoclerodane diterpenoids, 6-deacetyl-teucrolivin A (5) and 8β-hydroxy-teucrolivin B (6), were isolated from the aerial parts of Teucrium orientate, along with four already known neoclerodane diterpenoids, teucrolivin A (1), teucrolivin B (2), teucrolivin C (3) and teucrolivin H (4), previously isolated from Teucrium oliverianum. Their structures were elucidated on the basis of spectroscopic evidence and chemical transformations. Compounds 1-3 were assayed for antifeedant activity against Spodoptera littoralis, S. frugiperda and Heliocoverpa armigera. Teucrolivin A was the most potent of the three compounds tested.
公益社団法人日本薬学会の論文
2004-12-01