1. Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
2. Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei 230601, China
3. Hefei Institute of Pharmaceutical Industry Co., Ltd., 800 Wangjiangxi Road, Hefei, Anhui 231299, China