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Title: | Gnetins: Resveratrol oligomers from Gnetum species |
Authors: | Lins, Arlete Paulino Ribeiro, M. Nilce de S. Gottlieb, Otto Richard Gottlieb, Hugo Emilio |
Keywords: | New Drug Drug Analysis Drug Identification Drug Isolation Drug Structure Gnetin Gnetin A Gnetin B Gnetin C Gnetin D Gnetin Nonhuman Plant |
Issue Date: | 1982 |
metadata.dc.publisher.journal: | Journal of Natural Products |
metadata.dc.relation.ispartof: | Volume 45, Número 6, Pags. 754-761 |
Abstract: | Gnetum leyboldii and G. schwackeanum (Gnetaceae) are lianas of Amazonia. The former contains in its wood the gnetins A, B, C, D and E for which the structures of rel-(1R,5R,6R,7R)-6-(4-hydroxyphenyl)-7-(3,5-dihydroxyphenyl)-2-(E) — (4-hydroxystyryl) — 4,8-dioxobicyclo | 3.2.1 | oct-2-ene; 1-hydroxy-5-(4-hydroxyphenyl)-6-(3,5-dihydroxyphenyl)-3-(E)-(4-hydroxystyryl)-7-oxobicyclo |2.2.2| oct-2-ene; rel-(2S, 3S)-4-hydroxy-2-(4-hydroxyphenyl)-3-(3,5-dihydroxyphenyl)-6-(E)-(4-hydroxystyryl)-2,3-dihydrobenzofuran; rel-(2S,3S)-4-hydroxy-2-(2,4-dihydroxyphenyl)-3-(3,5-dihydroxyphenyl)-6-(E)-(4-hydroxystyryl)-2,3-dihydrobenzofuran; and rel-(2S,3S)-4-hydroxy-2-(4-hydroxyphenyl)-3-[6-re/-(2s,3s)-4-hydroxy-2-(4-hydroxyphenyl)-3-(3,5-dihydroxyphenyl)-2,3-dihydrobenzofuranyl]-6-(E)-(4-hydroxystyryl)-2,3-dihydrobenzofuran were proposed, respectively. The fruits of G. schwackeanum contain the gnetins C and E. © 1982, American Chemical Society. All rights reserved. |
metadata.dc.identifier.doi: | 10.1021/np50024a022 |
Appears in Collections: | Artigos |
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