Hwang B Y, Kim Y H, Ro J S, Lee K S, Lee J J
Natural Product Biosynthesis Research Unit, Korea Research Institute of Bioscience and Biotechnology, Yusong, Taejon.
Arch Pharm Res. 1999 Feb;22(1):72-4. doi: 10.1007/BF02976439.
Two acetophenones, cynandione A (1) and cynanchone A (2), were isolated from the roots of Cynanchum wilfordii. Their structures were identified by comparison of their physicochemical and spectral data with reported values.