1. Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Soochow University, Suzhou 215006, People's Republic of China
2. Key Laboratory of Salt Lake Resources and Chemistry of Chinese Academy of Sciences, Qinghai Institute of Salt Lakes, Xining 810008, People's Republic of China
3. State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China