1. School of Pharmaceutical Science and Technology
2. Tianjin University
3. Tianjin 300072
4. P. R. China
5. Department of Mechanical Engineering
6. Regional Centre of Advanced Technologies and Materials
7. Palacký University
8. 78371 Olomouc
9. Czech Republic
10. Institute of Organic Chemistry and Biochemistry v.v.i.
11. Department of Chemistry and Biochemistry