A New Premyrsinane-type Diterpenoid Polyester from Euphorbia dracunculoides Lam
Li Wang, Zhen Zang, Jie Zhang, Xianghua Wu, Shengxiong Huang, Pei Cao and Yong Zhao
College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
Hospital of Yunnan Normal University, Kunming 650500, China
Abstract: Phytochemical investigation of the 70% aqueous acetone extract of Euphorbia dracunculoides Lam. afforded a new premyrsinane-type diterpenoid polyester, 3β-O-isobutyryl-5α-O-benzoyl-7β,13β-di-O-acetyl-17-O-nicotinoylpremyrsinol (1), and two known analogues, euphorbialoids C (2) and D (3). Their structures were elucidated by means of extensive spectroscopic analysis (NMR and ESI-MS) and comparison with data reported in the literature.
Keywords: Euphorbia dracunculoides; premyrsinane-type; diterpen oid polyester . © 2015 ACG Publications. All rights reserved. |