Isolation and Identification of Chemical Constituents of Excoecaria cochinchinensis Lour.

To study the chemical constituents of Excoecaria cochinchinensis Lour.The constituents were isolated by silica gel column chromatography,Chromatorex ODS chromatography,and sephadex LH-20 chromatography.Ten compounds were obtained from 80% ethanol extract of Excoecaria cochinchinensis Lour and their structures were identified as oleanolic acid(1),arjunolic acid(2),kaempferol(3),quercetin(4),isoscutellarein(5),scopoletin(6),3,4,5-trihydroxybenzoic acid(7),phloroglucinol(8),β-sitosterol(9) and daucosterol(10).Compounds 2,5 and 8 were isolated from the genus Excoecaria for the first time,compounds 1,4 and 6 were isolated from this plant for the first time.