1. Department of Chemistry
2. National Institute of Technology
3. Tiruchirappalli – 620015
4. India
5. Siddha Central Research Institute
6. Central Council for Research in Siddha
7. Chennai – 600106
8. Division of Natural Drug Discovery
9. Institute of Natural Medicine
10. University of Toyama
11. Toyama 930-0194
12. Japan
13. Organic Chemistry Division
14. CSIR-Central Leather Research Institute
15. Chennai – 600020
16. Texas A & M University
17. College Station
18. USA
19. Department of Materials and Life Sciences
20. Sophia University
21. Tokyo 102-8554