Synthesis and in vitro antitumor activity of new butenolide-containing dithiocarbamates - Wang, Xiao-Juan; Xu, Hai-Wei; Guo, Lin-Lin; Zheng, Jia-Xin; Xu, Bo; Guo, Xiao; Zheng, Chen-Xin; Liu, Hong-Min (Bioorganic & Medicinal Chemistry Letters, 2011)