1. Department of Pharmacognosy, College of Pharmacy, Rangsit University, Pathumthani, Thailand
2. Department of Plant Science, Faculty of Science, Mahidol University, Bangkok, Thailand
3. Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
4. Department of Pharmaceutical Chemistry, College of Pharmacy, Rangsit University, Pathumthani, Thailand