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摘要
A new glycoside, pinnatoside A (1), together with two known compounds (2 and 3), were isolated from the stems of Paullinia pinnata. Their structures were elucidated on the basis of extensive spectroscopic analysis and chemical methods. Compound 1 showed significant antibacterial activity with a minimum inhibitory concentration (MIC) value of 1.56g/mL against Escherichia coli, and 2 displayed significant antibacterial activity with a MIC value of 1.56g/mL against Enterobacter aerogenes and E. coli. Equally, compound 1 exhibited the best radical-scavenging activity (RSa(50)=25.07 +/- 0.49g/mL).
- 出版日期2015-9-17
- 单位中国科学院大学; 中国科学院昆明植物研究所
