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[Cerebrosides isolated from Arisaema flavum]. | LitMetric
Silica gel, Sephadex LH-20, and reverse phase (C-18) column chromatography were used for the research of chemical constituents occurred in Arisaema flavum(Forsk.) Schott. The structures were elucidated by comparison physico-chemical properties and NMR spectroscopic data with those of known compounds. Seventeen cerebrosides were identified as 1-O-β-D-glucopyranosyl-(2S, 3R, 4E, 8E)-2-[(2'(R)-acetoxyoctadecanoyl)amido]-4, 8-octadecadiene-1, 3-diol (1), 2'-O-acetylsoyacerebroside I (2), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E, 13Z)-2-[(2'R)-2-hydroxytetradecanoylamino]-1, 3-dihydroxy-4, 13-docosadiene (3), (2S, 3R, 4E, 8E)1-(β-D-glucopyranosyl)-3-hydroxy-2-[(R)-2'-hydroxyhexadecanoyl]amino-9-methyl-4, 8-heptadecadiene (4), (2S, 3R, 4E, 8E)1-(β-D-glucopyranosyl)-3-hydroxy-2-[(R)-2'-hydroxyhexadecanoyl]amino-9-methyl-4, 8-octadecadiene (5), (2S, 3R, 4E, 8E)1-(β-D-glucopyranosyl)-3-hydroxy-2-[(R)-2'-hydroxypalmitoyl]amino-9-methyl-4, 8-octadecadiene (6), (2S, 3R, 4E, 8E)1-(β-D-glucopyranosyl)-3-hydroxy-2-[(R)-2'-hydroxyoctadecanoyl]amino-9-methyl-4, 8-octadecadiene (7), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E, 8E)-2-[(R)-2'-hydroxytetradecanoylamino]-4, 8-octadecadiene-1, 3-diol (8), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E, 8E)-2-[(R)-2'-hydroxypentadecanoylamino]-4, 8-octadecadiene-1, 3-diol (9), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E, 8E)-2-[(R)-2'-hydroxyhexadecanoylamino]-4, 8-octadecadiene-1, 3-diol (10), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E, 8Z)-2-[(R)-2'-hydroxyhexadecanoylamino]-4, 8-octadecadiene-1, 3-diol (11), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E, 8E)-2-[(R)-2'-hydroxyoctadecanoylamino]-1, 3-hydroxy-4, 8-octadecadiene (12), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4E)-2-[(R)-2'-hydroxytetracosanoylamino]-1, 3-hydroxy-4-hexadecane (13), 1-O-(β-D-glucopyranosyl)-(2S, 3R, 4R, 8Z)-2N-[(2'R)-2'-hydroxytetracosanoyl]-8-(Z)-octadecene-1, 3, 4-triol (14), 1-O-(β-D-glucopyranosyl)-(2S, 3S, 4E, 8E)-2N-[(2'R)-2'-hydroxyhexadecanoyl]-4-(E), 8-(Z)-octadecadiene-1, 3-diol (15), typhoniside A (16), and 1-O-β-D-glucopyranosyl-(2S, 3R, 8E)-2-[(2'R)-2-hydroxypalmitoylamino]-8-octadecene-1, 3-diol (17). Compounds 1 and 2 were isolated from the plant for the first time, while the remained compounds were isolated from the genus Arisaema for the first time.
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