1. State Key Laboratory of Drug Research & Center of Pharmaceutics; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; Shanghai 201203 China
2. University of Chinese Academy of Sciences; Beijing 100049 China
3. School of Pharmacy; Shenyang Pharmaceutical University; Shenyang 110016 China
4. School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 China