Na LI,Xin LIU,Mao LIN* Institute of Materia Medica,Chinese Academy of Medical Sciences & Peking Union Medical College,1 Xian Nong Tan Street,Beijing 100050
Abstract:
A new resveratrol tetramer, sinicin A was isolated from the roots of Ampelopsis sinica, with four known tetramers: vitisin A, cis-vitisin B, ampelopsin H and hopeaphenol. The structure and stereochemistry of sinicin A have been established on the basis of 1D and 2D NMR spectroscopic techniques.