1. School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
2. Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P.R. China
3. Chongqing Key Laboratory of Green Synthesis and Application, Chongqing Normal University, Chongqing 401331, P. R. China
4. College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, P. R. China
5. Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310000, P. R. China