1. College of Chemistry and Environmental Science
2. and the MOE Key Laboratory of Medicinal Chemistry and Molecular Diagnostics
3. Hebei University
4. Baoding 071002
5. People's Republic of China
6. School of Public Health
7. Hebei Medical University
8. Shijiazhuang 050017
9. Center for Analysis and Synthesis
10. Department of Chemistry
11. Lund University
12. SE-221 00 Lund
13. Sweden