An NMR Study on Parisaponin I and Parisvietnaside A Isolated from Paris polyphylla Smith var. yunnanensis
LIU Yi-xun;KANG Li-ping;ZHAO Yu;CHEN He-bing;ZOU Peng;
XIONG Cheng-qi;ZHAO Yang;TAN Da-wei;MA Bai-ping
Chinese Journal of Magnetic Resonance . 2009, (3): 316 -326 .