1. Institute of Pharmacy and Pharmacology, Hengyang Medicinal School, University of South China, Hengyang, Hunan, 421001, China
2. Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
3. Department of Pharmacy, Hunan Vocational College of Science and Technology, Third Zhongyi Shan Road, Changsha, Hunan, 410004, China
4. Department of Chemistry, Innovative Drug Research Center, Shanghai University, 200444 Shanghai, China
5. Hunan University of Chinese Medicine, School of Pharmacy, Changsha, Hunan 410208, China