A new dibenzofuran and other constituents from Ligularia caloxantha, a Chinese medicinal plant

Authors Shi, Shu-Yun; Hu, Ming-Hui; Wu, Di-Yao; Zhou, Chang-Xin; Mo, Jian-Xia; Xu, Juan-Hua; Chen, Liu-Rong; Dou, Hui; Peng, Hua; Hao, Xiao-Jiang; Stoeckigt, Joachim; Zhao, Yu

Journal NATURAL PRODUCT RESEARCH , MAY 10 2008,7:22

DOI 10.1080/14786410701614218 PubMed 18569702

Abstract A new dibenzofuran named 1,2,4-trimethyl-7,8-dimethoxy-dibenzofuran (1), together with seven known compounds, euparin (2), 2,5-diacetyl-6-hydroxy-benzofuran (3), 2-acetyl-5,6-dimethoxybenzofuran (4), gummosogenin (5), lupeol (6), stigmasterol (7) and (E)-2,5-dihydroxy-cinnamic acid (8), were isolated from the roots of Ligularia caloxantha, a Chinese medicinal plant. The structures of the compounds were elucidated by spectroscopic methods.