[Chemical constituents from seeds of Sophora alopecuroides].

OBJECTIVE: To study the chemical constituents of Sophora alopecuroides seeds. METHODS: Five compounds were isolated and purified from this plant by various chromatographic methods. Structures were elucidated on the basis of spectral analysis. RESULTS: The structures were identified as 5"-methoxy-6-C-beta-D-glucopyranosyl-6"-C-beta-D-xylopyranosyl cupressuflavone(1),5,6-dihydroxy-3,7, 3',4'-tetramethoxyflavone(2),butein(3),beta-daucosterol(4) and 3'-methoxyluteolin(5). CONCLUSION: Compounds 2,4 and 5 are isolated from Sophora alopecuroides for the first time.