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Triterpenes and phytosterols from Scaevola taccada collected in Ly Son island, Quang Ngai province, Vietnam

Tran Thi Phuong Thao, Pham Thi Huyen, Duong Van Anh, Do Xuan Cam, Nguyen The Anh, Tran Van Loc, Tran Van Sung

Abstract


From the ethyl acetate extract of the leaves of Scaevola taccada (Gaertn.) Roxb., two triterpenes (ursolic acid 6, myricadiol 5), two sterols (β-sitosterol 3, β-sitosterol glycoside 4), together with two long-chain hydrocarbons, tritriacontane 1 and tetracosane 2 have been isolated. Their structures were elucidated by the analysis of the IR, MS and NMR 1D and 2D spectra. Compound 1, 2, 3, 5, 6 were isolated for the first time from Scaevola taccada.


Keywords


Scaevola taccada, triterpenes, sterols, long-chain hydrocarbons, ursolic acid, myricadiol, tritriacotane, tetracosane

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