Studies on the Constituents of the Root of Polygala tenuifolia WILLDENOW. II. On the Structures of Onjisaponins A, B and E

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概要

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• The structures of three triterpenoidal saponins, onjisaponins A (1), B (2) and E (3), were determined on the basis of spectral and chemical evidence as presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-{[β-D-apio-D-furanosyl (1→3)] [β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)]-α-L-rhamnopyranosyl}-3-O-(α-L-rhamnopyranosyl)-4-O-(4'-methoxy-cinnamoyl)-β-D-fucopyranoside, presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-[β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl]-3-O-(α-L-rhamnopyranosyl)-4-O-(4'-methoxycinnamoyl)-β-D-fucopyranoside (=senegin III) and presenegenin- (3)-O-β-D-glucopyranosido-(28)-2-O-[β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl]-4-O-(3', 4', 5'-trimethoxycinnamoyl)-β-D-fucopyranoside, respectively. The ^<13>C nuclear magnetic resonance spectra of onjisaponins A, B, E and their derivatives were investigated and each carbon signal was assigned as shown in Table I.

• 公益社団法人日本薬学会の論文
• 1982-03-25

著者

• 庄司 順三

  School Of Pharmaceutical Sciences Showa University

• 佐久間 聖一

  School of Pharmaceutical Sciences, Showa University

• 佐久間 聖一

  School Of Pharmaceutical Sciences Showa University

• 庄司 順三

  昭和大学

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