Abstract
Two new physalins, 7α-hydroxy-5-deoxy-4-dehydrophysalin IX (1) and 5-deoxy-4-dehydrophysalin IX (2), together with six known compounds, luteolin (3), luteolin-7-O-glucoside (4), neoechinulin A (5), 3-(4-hydroxy-3-methoxyphenyl)-N-(4-methylphenyl)-2-propenamide (6), physalin D (7) and blumenol A (8) were isolated from Physalis alkekengi L. var. franchetii (Mast.) Makino. Their structures were elucidated by NMR spectroscopic analysis, HR-ESI-MS, X-ray crystallographic data analysis and comparison with the known compounds. Among them, compounds 5 and 6 were isolated from the genus Physalis for the first time. Compound 1 exhibited weak NAD(P)H: quinone reductase (QR) inducing activity.
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