| Metasequoia glyptostroboides leaves were extracted with methanol after air drying and crushing, and their chemi‑
cal constituents were separated and purified by silica gel column chromatography, MCI column chromatography, Sephadex
LH-20 gel column chromatography and HPLC, and 6 compounds were obtained, which were identified by spectroscopic
analysis and their physicochemical properties as one norlignans and 5 lignans. Their structures were elucidated as salicifoli‑
ol (1), lariciresinol 9'-benzoate (2), (-)-hinokinin (3), meridinol (4), 8-hydroxypluviatolide (5), and (-)-matairesinol (6) re‑
spectively. Lignans 1, 2 and 5 were isolated from the plant for the first time. |
