1. Department of Chemistry and Center of Excellence for Innovation in Chemistry
2. Faculty of Science
3. Prince of Songkla University
4. Hat Yai
5. Thailand
6. Natural Products Research Center of Excellence and Department of Microbiology
7. National Center for Genetic Engineering and Biotechnology (BIOTEC)
8. Pathum Thani 12120
9. Shanghai Institute of Materia Medica
10. Chinese Academy of Sciences
11. Shanghai 201203
12. China