|
|||||
|
|
Terpenoids from Euphorbia pekinensis |
|
| Authors: | Fu-Hu Fang Wen-Hai Li Zheng-Zhi Han Wen-Jun Huang Dong-Xu Li Sha Zhao |
| Institution: | State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China |
| Abstract: | AbstractEuphorpekone A (1) and euphorpekone B (2), two new diterpenoids, 3β-hydroxy-25-methyloxylanosta-8,23-diene, a new triterpenoid (3), together with a known triterpenoid, 3β,25-dihydroxylanosta-8,23-diene (4), were isolated from Euphorbia pekinensis Rupr. Their structures were elucidated on the basis of UV, IR, 1D (1H, 13C, NOE) and 2D (1H–1H COSY, HSQC, HMBC) NMR, HR-ESI-MS, X-ray diffraction analysis, and CD method. |
| Keywords: | Euphorbia pekinensis Euphorbiaceae diterpenoid triterpenoid |