1. Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
2. Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
3. School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China