Chemical and Chemotaxonomical Studies of Filices. LXI. Chemical Studies on the Constituents of Pronephrium triphyllum HOLLT.
キーワード:
^<13>CNMR
1985 年 33 巻 12 号 p. 5231-5238
詳細
1985 年 33 巻 12 号 p. 5231-5238
From the fronds of Pronephrium triphyllum HOLLT., three new glycosides, named triphyllins A, B and C, were isolated. Their structures were determined as (2R, 4S)-5, 7-di-β-D-glucosyloxy-6-hydroxymethyl-4'-methoxy-8-methylflavan-4-ol, (2R, 4S)-5, 7-di-β-D-glucosyloxy-4'-hydroxy-6-hydroxymethyl-8-methylflavan-4-ol and (2S)-7-β-D-glucosyloxy-5-hydroxy-4'-methoxy-6-methoxymethyl-8-methylflavanone, respectively, on the basis of spectral data and chemical correlations.
