J Integr Plant Biol. ›› 1986, Vol. 28 ›› Issue (2): -.
• Research Articles •
Fang Zha-pu and Yin Guo-jiang
Abstract: A new triterpene saponin B has been isolated from the earial parts of Polygala japonica Houtt in folk-lore medicine. Its molecular: C48H78O20, m.p. 199–202℃, [α]D23+30.0 (C, 0.5, CH3OH). Acidic hydrolysis of this saponin gave a sapogenin (2α, 3α, 24-tri-hydroxyolean-12-ene-28-oic acid) and D-glucose. The structure of saponin B was elucidated as 28-O- [β-D-glucopyranosyl (1→2) -β-D-glucopyranosyl (1→2) -β-D-glucopy- ranosyl] 2α, 3α, 24-trihydroxyolean-12-ene-28-oic acid mainly by 13C-NMR, MS and some chemical transfomations.
Key words: Polygala japonica Houtt, Triterpene saponin B, 28-O-[β-D-gluco- pyranosyl (1→2)-β-D-glucopyranosyl (1→2)-β-D-glucopyranosyl]2α, 3α, 24-trihydroxyolean-12-ene-28-oic acid
Fang Zha-pu and Yin Guo-jiang. Study on the Structure of a New Triterpene Saponin B from Polygala japoniea Houtt[J]. J Integr Plant Biol., 1986, 28(2): -.
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https://www.jipb.net/EN/Y1986/V28/I2/