LIGNANS FROM IRYANTHERA JURUENSIS WARB
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Rev. Bol. Quim
Abstract
Cuatro Lignanos Otobafenol (1), Cagayanin (2), Otobain (3) y Hydroxiotobain (4) se encontraron junto con un compuesto similar al tocoferol identificado como: (5S)-3a-acetil-2,3,5-trimetil7a-hidroxy-5-(4,8,12-trimethyltridecanil) 1,3a,5,6,7,7a-hexahydro-4-oxainden-1-ona (5) y un alcano lineal muy largo (6), reportado aquí como producto natural por primera vez, se encontraron en los extractos hexanicos y diclorometanicos de las hojas de Iryanthera Juruensis warb, usada frecuentemente como planta medicinal in la selva del amazonas, la elucidación estructural se realizo mediante espectroscopia de resonancia magnetica nuclear y espectrometria de masas.
Four lignans Otobaphenol (1), Cagayanin (2), Otobain (3) and Hydroxyotobain (4), together with a tocopherol like compound identified as (5S)-3a-acetyl-2,3,5-trimethyl-7a-hydroxy-5- (4,8,12-trimethyltridecanyl) -1,3a,5,6,7,7ahexahydro-4-oxainden-1-one (5) and a very long unbranched alcane (6) reported here as natural product for the first time were found in the hexane and dichloromethane extract from the leaves of Iryanthera Juruensis warb, a plant frequently used as a medicinal plant in the amazons rain forest, the structure elucidation was performed by NMR spectroscopy and mass spectrometry.
Four lignans Otobaphenol (1), Cagayanin (2), Otobain (3) and Hydroxyotobain (4), together with a tocopherol like compound identified as (5S)-3a-acetyl-2,3,5-trimethyl-7a-hydroxy-5- (4,8,12-trimethyltridecanyl) -1,3a,5,6,7,7ahexahydro-4-oxainden-1-one (5) and a very long unbranched alcane (6) reported here as natural product for the first time were found in the hexane and dichloromethane extract from the leaves of Iryanthera Juruensis warb, a plant frequently used as a medicinal plant in the amazons rain forest, the structure elucidation was performed by NMR spectroscopy and mass spectrometry.
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Vol. 23, No. 1