1. College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China
2. School of Chemical and Biological Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
3. Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, P. R. China