Guo, Hui-Fang; Shao, Hua-Yi; Yang, Zhao-Yong; Xue, Si-Tu; Li, Xue; Liu, Zong-Ying; He, Xiao-Bo; Jiang, Jian-Dong; Zhang, Yue-Qin; Si, Shu-Yi; Li, Zhuo-Rong Journal of Medicinal Chemistry, 2010 , vol. 53, # 4 p. 1819 - 1829