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To investigate the saponins from whole plants of Lysimachia davurica Ledeb., two new saponins named davuricoside I (compound 1) and E (compound 2) were isolated. Their chemical structures were elucidated as 3β, 16α, 28, 29-tetrihydroxy-olean-12-en-3-O-β-D-glucopyranosyl-(1→2)-β- D-glucuronopyranoside (compound 1) and 3β, 16α, 29-trihydroxy-13, 28-epoxy-oleanane-3-O-β-D-glucopyranosyl-(1→2)-β-D-glucuronopyranoside (compound 2) on the basis of their one- and two-dimensional nuclear magnetic resonance and mass spectrometry data, and chemical methods. Compound 1 showed significant cytotoxic activity against human A2780 cells. (Managing editor: Wei Wang) [ABSTRACT FROM AUTHOR]

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-Z-arabinpyranoyi]-22-O-β-D-glucopyranoside (1) and 3β, 22α-dihydroxy-16α-acetat-28-l3-lactone-oleanane-3-O-{[β-D-glucopyranosy-(l→2)-β-D-glucopyranosyl-(l→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. (Managing editor: Wei WANG) [ABSTRACT FROM AUTHOR]