Structural Elucidation of Three Flavonoids Extracted from the Rhizomes of Ligularia vellerea by NMR Spectroscopy
WANG Cai-fang1,2;LI Jun-ping1,3;LI Rao-rao4;ZHAO Yu2;ZHANG Yan-bing1;ZHANG Zhen-zhong1
Chinese Journal of Magnetic Resonance . 2009, (2): 264 -271 .