1. Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
2. Department
of Chemistry and Biochemistry, Texas State University, San Marcos, Texas 78666, United States
3. Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China
4. Department
of Chemistry, Beijing Normal University, Beijing 100050, P. R. China