Zhang, Jing; Zhan, Peng; Wu, Jingde; Li, Zhenyu; Jiang, Yan; Ge, Weiying; Pannecouque, Christophe; De Clercq, Erik; Liu, Xinyong Bioorganic and Medicinal Chemistry, 2011, vol. 19, # 14 p. 4366 - 4376 doi: 10.1016/j.bmc.2011.05.024