Abstract
An ethanol extract of Lactarius necator gave 3,8-oxa-13-hydroxy-lactar-6-en-5-oic acid γ-lactone and furanether A, besides other known sesquiterpenes. Syntheses of these internal ethers, as well as the 13-oxa-lactonic analogue, were performed. The antifeedant properties of the internal ethers measured against the storage pests Tribolium confusum, Trogoderma granarium and Sitophylus granarius are reported.
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