Flavonoids from the Roots of Stellera chamaejasme L.

Eighteen compounds were isolated from the 95% EtOH extracts of Stellera chamaejasme L.,and the structures of all compounds were elucidated by means of spectroscopic analysis and physical-chemical properties as 4'-methoxyl-7hydroxyflavone(1),kaempferol(2),5,4'-dihydroxy-7-methoxylflavanone(3),4',5,7-trihydroxyflavanone(4),3,5,7trihydroxy-flavanone(5),kaempferol-7-O-β-D-glucoside(6),α-amyrin(7),(24R)-stigmast-7,22(E)-dien-3α-ol(8),chamaechromone(9),umbelliferone(10),scopoletin(11),isoscopoletin(12),chamaejasmine(13),daphnetin(14),isopirapinellin(15),β-sitosterol(16),daphnodorin B(17) and β-duacosterol(18).Among the above compounds,1-8 were obtained from the plant for the first time.