1. The National Center for Drug Screening and The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai 201203, China
2. The State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai 201203, China
3. Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA 92037, USA
4. School of Pharmacy, Fudan University, Shanghai 201203, China