title: Medicinal chemistry.
authors: School of Pharmaceutical Science, Peking University, Beijing, China. Electronic address:zdszlh@bjmu.edu.cn.
authors: Li-He
authors: LH
authors: Zhang
authors: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China. Electronic address:kxchen@mail.shcnc.ac.cn.
authors: Kaixian
authors: K
authors: Chen