Chemical constituents of Ilex kudingcha leaves / 中草药

ABSTRACT

Objective: To investigate the chemical constituents in the leaves of Ilex kudingcha. Methods: Repeated column chromatography with silical gel, maroporous resin column, Sephadex LH-20, and preparative HPLC were used to isolate the chemical constituents, and their structures were elucidated on the basis of spectral data. Results: Eight compounds were isolated and identified as mateglycoside D (1), methyl caffeate (2), vanillin (3), gallic acid (4), caffeic acid (5), β-sitosterol (6), p-hydroxy-benzaldehyde (7), and ferulic acid (8). Conclusion: Compounds 2 and 7 are first obtained from the plants of Ilex L., and compounds 1,3,4, and 8 are first obtained from I. kudingcha.