Wang, Hai-Hong; Qiu, Ke-Ming; Cui, Hong-En; Yang, Yu-Shun; Yin-Luo; Xing, Man; Qiu, Xiao-Yang; Bai, Li-Fei; Zhu, Hai-Liang Bioorganic and Medicinal Chemistry, 2013 , vol. 21, # 2 p. 448 - 455