1. State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P. R. China
2. School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
3. School of Medicine, Shanghai University, Shanghai 200444, P. R. China
4. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
5. Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan Tsuihang New District, Guangdong 528400,P. R. China
6. School of Life Sciences, Shanghai University, Shanghai200444, P. R. China