1. a Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University , Shanghai , 200062 , P.R. China
2. b Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry , East China Normal University , Shanghai , 200062 , P.R. China
3. c Medicinal Chemistry, ChemBridge Research Laboratories, Inc. , San Diego , CA , 92127 , USA
4. d Shanghai Advanced Research Institute, Chinese Academy of Science, Sustainable Technology Research Center , Shanghai , 201210 , P.R. China