1. Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India;
2. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia;
3. AMIPRO SDN. BHD. (Co. No.1166264-V), Malaysian Institute of Pharmaceuticals and Nutraceuticals, Ministry of Science, Technology and Innovation, Gelugor, Pulau Pinang, Malaysia