Structurally diversified diterpenoids from Euphorbia dracunculoides

Autor: Fu-Mei Yang, Yong Zhao, Jing Yang, Qian-Yun Sun, Xiang-Hua Wu, Zhen Zang, Xiao-Nian Li, Feng-Yi Liu, Ya-Tuan Ma, Li Wang, Yijun Yan, Sheng-Xiong Huang
Rok vydání: 2015
Předmět:
Zdroj: Tetrahedron. 71:5484-5493
ISSN: 0040-4020
DOI: 10.1016/j.tet.2015.06.078
Popis: Extensive phytochemical investigation of the aerial parts of Euphorbia dracunculoides led to the isolation of 19 structurally diversified diterpenoids with five different carbon skeletons, including six new lathyrane glycosides (1-6), three new cyclomyrsinanes (7-9), three new premyrsinanes (10-12), and one new 10,18-dihydromyrsinane (13). Their structures were elucidated by means of extensive spectroscopic analysis, and the structure of 7 was further confirmed by X-ray crystallography. Compounds 1-6 are the first examples of C-17-glycosylated lathyrane diterpenoids. Selected isolates were evaluated for their cytotoxicity against five cancer cell lines. Only the tiglianes exhibited moderate activity. (C) 2015 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE