Chemical constituents of Physalis alkekengi var. franchetii (II) / 中草药

ABSTRACT

Objective: To investigate the chemical constituents in persistent calyx of Physalis alkekengi var. franchetii. Methods: Various colume chromatographies over silica gel, Sephadex LH-20, and HPLC were used to separate the chemical constituents and their structures were elucidated by physicochemical property, 1H-NMR, 13C-NMR, and MS. Results: Four chemical constituents were obtained and identified as caffeic acid ethyl ester (1), 25, 27-dehydro-physalin L (2), physalin D (3), and cuneataside E (4). Conclusion Compound 2 is a new natural product, and compound 4 is isolated from the plant for the first time.