J Integr Plant Biol. ›› 2005, Vol. 47 ›› Issue (10): 1271-1275.DOI: 10.1111/j.1744-7909.2005.00110.x

• Research Articles • Previous Articles    

Two New Saponins from Lysimachia capillipes Hemsl.

Jing-Kui TIAN, Zhong-Mei ZOU, Li-Zhen XU and Shi-Lin YANG   

Abstract: To investigate the saponins from whole plants of Lysimachia capillipes Hemsl., two new saponins, named capilliposide E (1) and capilliposide F (2), were isolated. The structures of the new saponins were elucidated as 3β, 22α-dihydroxy-16α-acetat-28→13-lactone-oleanane-3-O-[β-D-glucopyranosyl-(1→2)-α-L-arabinpyranoyl]-22-O--D-glucopyranoside (1) and 3β, 22α-dihydroxy-16α-acetat-28→13-lactone-oleanane-3-O-{[β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→4)]-α-L-arabinpyranoyl}-22-O-β-D-glucopyranoside (2). The structures of these compounds were determined by 1D- and 2D-NMR, MS techniques, and chemical methods.

Key words: capilliposide E and F, Lysimachia capillipes, triterpene saponin.

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