Studies on the Chemical Constituents of Rhizomes of Smilax bockii Warb.

Objective: To study the chemical constituents of rhizomes of Smilax bockii Warb. Methods: The constituents were isolated and purified by colunm chromatography and preparative TLC. Their structures were identified on the basis of comprehensive spectroscopic methods including ESI-MS and spectral data ( 1 H, 13 C-NMR). Results: Twelve compounds were isolated and identified as dios- genin (1), phthalic acid derivative (2), coriander lactone (3), resveratrol (4), kaempferol (5), di- hydro kaempferol (6), quercetin (7), dihydroquercetin (8), soya cerebroside II (9), sesame cere- broside (10), isoengelitin (11), kaempferol 5-O-β-D-glucopyranoside (12), and dihydrokaempferol 5- O-β-D-glucopyranoside (13). Conclusion: Compounds 2, 3, 9, 10 were isolated from the genus Smilax for the first time.