1. Department of Medicinal Chemistry
2. School of Pharmaceutical Sciences
3. Shandong University
4. Jinan 250012
5. PR China
6. Liaocheng People's Hospital
7. Liaocheng 252000
8. Institute of BioPharmaceutical Research
9. Liaocheng University
10. Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education
11. School of Pharmaceutical Engineering
12. Shenyang Pharmaceutical University
13. Shenyang 110016