Gama-Lactones from Iryanthera species
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Elsevier B.V.
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Resumo
The structure of juruenolide, a constituent of Iryanthera juruensis and I. ulei is revised to (2S, 3R, 4S)-3-hydroxy-4-methyl-2-(19′-piperonyl-1′-n-nonadecyl)-butanolide. The compound is epimeric at C-3 of the γ-lactone unit with grandinolide [(2S, 3S, 4S)-3-hydroxy-4-methyl-2- (19′-phenyl-1′-n-nonadecyl)-butanolide] from I. grandis. An extract of I. juruensis contained additionally juruenolide-B [(4S)-4-methyl-2-(19′-piperonyl-1′-n-nonadec-7′-enyl)-but-2-enolide]. Analogous products with heptadecyl and pentadecyl side chains co-occur with the respective nonadecyl derivatives. © 1983.
Descrição
Palavras-chave
2-(ω-aryl-n-alkyl)-γ-lactones., grandinolide, I. juruensis, I. ulei, Iryanthera grandis, juruenolides, Myristicaceae
Idioma
Inglês
Citação
Phytochemistry, v. 22, n. 3, p. 711-713, 1983.
