1. CAS Key Laboratory of Receptor Research; CAS Center for Excellence in Molecular Cell Science; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zuchongzhi Road Pudong Shanghai 201203 P.R. China
2. University of Chinese Academy of Sciences; No. 19A Yuquan Road Beijing 100049 P.R. China
3. Department of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 P.R. China
4. State Key Laboratory of Drug Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; Shanghai 201203 P.R. China
5. Center for Biotherapeutics Discovery Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; Shanghai 201203 P.R. China