1. Department of Applied Chemistry Faculty of Sciences and Liberal Arts Rajamangala University of Technology Isan Nakhon Ratchasima 30000 Thailand
2. Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahasarakham University Maha Sarakham 44150 Thailand
3. Natural Products Research Unit Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Khon Kaen University Khon Kaen 40002 Thailand
4. Department of Chemistry Faculty of Science Ramkhamhaeng University, Bangkapi Bangkok 10240 Thailand