1. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Ministry of Education of China, Lanzhou 730000, Gansu, China
2. School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
3. Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China