Two new saponins named davuricoside I (1) and davuricoside E (2) were isolated fromthe whole plants of Lysimachia davurica. Their structures were determined by 1D and 2D NMR,FAB-MS techniques, and chemical methods.
Two new saponins named davuricoside H and davuricoside K were isolated from the whole plant of Lysimachia davurica. The structures of davuricoside H and davuricoside K were determined by 1-D and 2-D NMR, MS techniques...Two new saponins named davuricoside H and davuricoside K were isolated from the whole plant of Lysimachia davurica. The structures of davuricoside H and davuricoside K were determined by 1-D and 2-D NMR, MS techniques, and chemical methods to be 3β,16α ,28-trihydroxy-olean-12-en-30-oic acid-3-O-β-D-glucopyranosyl-（ 1→2 ）- [β-D-glucopyranosyl-（ 1 → 4 ） ] -α-L-arabinopyranoside and 3β,16or ,28-trihydroxy-olean-12-en-30-oic acid-3-O-{β-D- glucopyranosyl- （ 1 →2 ） - [β-D-glucopyranosyl- （ 1 →4 ） ] -α-L-arabinopyranosyl } -30-O-β-D-glucopyranosyl-ester.展开更多
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, 1...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.展开更多
基金This research was supported by the National Natural Science Foundation of China(Grant No.39870085).
文摘Two new saponins named davuricoside I (1) and davuricoside E (2) were isolated fromthe whole plants of Lysimachia davurica. Their structures were determined by 1D and 2D NMR,FAB-MS techniques, and chemical methods.
基金Supported by the National Natural Science Foundation of China(No. 39870085).
文摘Two new saponins named davuricoside H and davuricoside K were isolated from the whole plant of Lysimachia davurica. The structures of davuricoside H and davuricoside K were determined by 1-D and 2-D NMR, MS techniques, and chemical methods to be 3β,16α ,28-trihydroxy-olean-12-en-30-oic acid-3-O-β-D-glucopyranosyl-（ 1→2 ）- [β-D-glucopyranosyl-（ 1 → 4 ） ] -α-L-arabinopyranoside and 3β,16or ,28-trihydroxy-olean-12-en-30-oic acid-3-O-{β-D- glucopyranosyl- （ 1 →2 ） - [β-D-glucopyranosyl- （ 1 →4 ） ] -α-L-arabinopyranosyl } -30-O-β-D-glucopyranosyl-ester.
基金Supported by the National Natural Science Foundation of China （39870085）.
文摘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.
