6Kuo Y H, H wang S Y, Yang K L M. A novel cytotox- ie C-methylated biflavone, Taiwanhom of lavone-B from the twigs of Cephalotaxus wilsoniana.[J]. Chem Pharm Bull, 2002, 50( 12 ): 1607.
7Wang LW, Su H J, Yang S Z, et al. New alkaloids and a tetraflavonoid from Cephalotaxus wilsoniana. [J] . J N at Prod, 2004, 67(7) : 1182.