1. State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
2. Department
of Biochemistry and the Virginia Tech Center for Drug Discovery, MC 0308, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
3. School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
4. College
of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
5. Department
of Chemistry and the Virginia Tech Center for Drug Discovery, MC 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States