Abstract
The chemical constituents from the fruiting bodies of Lyophyllum decastes (Fr.) Singer were studied in this paper. Thirteen compounds were isolated and purified by column chromatographies on silica gel and Sephadex LH-20. Their structures were identified by MS and NMR data analysis as adenosine (1), 2R, 3S, 4S, 8E)-2-[(2'R)-2-hydroxyheneicosanoylamino]-8-octadecene-1, 3, 4-triol (2), (2R, 3S, 4S, 8E)-2-[(2'R)-2-hydroxypentacosanoylamino]-8-octadecene-1, 3, 4-triol (3), nicotinic acid (4), (4E, 8E) -2-N-2-hydroxytetracosanoyl-1-O-beta-D-glycopyranosyl-9-methyl-4, 8-sphingadienine (5), D-mannitol (6), ergosteryl-3-O-beta-D-glucopyranoside (7), tuberoside (8), (2R, 3S, 4S, 8E)-2-[(2'R)-2-hydroxybehenoylamino]-8-octadecene-1, 3, 4-triol (9),(2R, 3S, 4S, 8E)-2-[(2'R) -2-hydroxytricosanoylamino] -8-octadecene-1, 3, 4-triol (10), (22E, 24R)-ergosta-7, 22-dien-3beta, 5alpha, 6beta-triol (11), (22E, 24R)-ergosta-5, 7, 22-trien-3beta-ol (12), and 5alpha, 8alpha-epidiory-(22E, 24R)-ergosta-6, 22-dien-3beta-ol (13), respectively. All the above compounds are first obtained from the mushroom and compounds 2-10 are reported to be obtained from the Lyophyllum for the first time.
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