| Popis: |
To explore the alternative material for the stems of Evodia lepta used in clinic, the leaves extract of E. lepta was chemically investigated by silica gel, Sephadex LH-20, ODS column chromatographies, and preparative HPLC and the structures of the compounds were identified mainly by spectroscopic methods. Ten known compounds 4-hydroxy-4, 7-dimethyl-1-tetralone (1), (6R, 7E) -4, 7-megastigmadien-3, 9-dione (2), 4-megastigmen-3, 9-dione (3), formononetin (4), daidzein (5), oroxylin A (6), wogonin (7), 5, 7-dihydroxy-3, 4'-dimethoxyflavone (8), N-trans-coumaroyltyranine (9) and (E) -p-hydroxycinnamic acid (10), have been obtained and identified. All these compounds were isolated from this species for the first time. The results revealed that there is a considerate chemical difference between the stems and leaves of E. lepta. |
