Chemical constituents from stems and leaves of Cirsium henryi / 中草药

ABSTRACT

Objective: To study the chemical constituents from the stems and leaves of Cirsium henryi. Methods: The chemical constituents were isolated by various chromatography techniques and their structures were elucidated on the basis of spectroscopic analysis. Results: Sixteen compounds were isolated and identified to be stearic acid (1), 2,3-dihydroxypropyl hexadecanoate (2), palmitic acid (3), taraxasterol (4), pseudo taraxasterol (5), taraxa-sterol acetate (6), β-sitosterol (7), daucosterol (8), protocatechuic acid (9), uracil (10), linarin (11), apigenin (12), quercitrin (13), acacetin (14), acacetin-7-O-β-D-glucoside (15), and 4-hydroxy- 3,5-dimethoxy benzoic acid (16), respectively. Conclusion Compounds 3 and 10-16 are isolated from the plant for the first time, and compounds 10, 13, and 16 are isolated from the plants of Cirsium Mill. Emend. Scop. for the first time.