Affiliation:
1. College of Chemistry and Chemical Engineering, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
Abstract
The C–3 2-methyl-but-2-enoic acid ester of 2-(1-1-acetoxyisopropenyl)-5-acetyl-3,6-dihydroxy-2,3-dihydro-benzofuran (1) and 6-acetyl-7-hydroxy-2-isopropylidene-benzo[1,4]dioxin-3-one (2), together with nine known compounds (3–11) were isolated from the roots of Ligularia stenocephala. Their structures were elucidated by spectroscopic methods (IR, MS, 1H, 13C and 2D NMR).
Cited by
8 articles.
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