1. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
2. Department of Chemistry, University of California Davis, One Shields Avenue, Davis, California, 95616, USA
3. Syngenta Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK
4. State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou, 730000, P. R. China