Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique
| 作者： | Liu-Kai Wang, Cai-Juan Zheng, Xiao-Bao Li, Guang-Ying Chen, Chang-Ri Han, Wen-Hao Chen, Xiao-Ping Song |
| 作者单位： |
1ey Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, Hainan, China 2Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, Hainan, China 3Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal Universit |
| 刊名： | Molecules, 2014, Vol.19 (6), pp.7621-7628 |
| 来源数据库： | Directory of Open Access Journals |
| DOI： | 10.3390/molecules19067621 |
| 关键词： | Polyalthia obliqua; Triterpenoid; Antibacterial activity; |
| 原始语种摘要： | Two new lanostane triterpenoids, 20-hydroxyeuphorbol-7-one (1) and 15α-hydroxyeuphorbol-7,11-dione (2), together with four known triterpenoids, euphorbol-7-one (3), friedelin (4), stigmast-4-ene-6α-ol-3-one (5), stigmasta-4-en-3,6-dione (6), were isolated from ethanol extract of the branches and leaves of Polyalthia obliqua. The structures of 1 and 2 were elucidated on the basis of extensive spectroscopic analysis and comparisons with related known compounds. Antibacterial activities of two new compounds and four known compounds were tested. |
