1. Department of Chemistry, Medicinal Chemistry Laboratory, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, India
2. Biological Sciences, Poornaprajna Institute of Scientific Research, Bangalore 562110, India
3. Drug Discovery, Infectious Disease Research Institute (IDRI), 1616 Eastlake, Avenue E, Suite 400, Seattle, WA 98102, USA
4. Department of Chemistry, NMR Instrumentation, Universiti Teknologi Malaysia, 81310, UTM Skudai, Johor, Malaysia
5. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box. 2457 - Riyadh 11451, Saudi Arabia
6. X-ray Crystallography, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia