1. Laboratory of Natural Products, Center for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, 52100 Lampang, Thailand
2. Science and Technology Research Institute, Chiang Mai University, 53000 Chiang Mai, Thailand
3. Department of Biochemistry, Faculty of Medicine, Chiang Mai University, 52000 Chiang Mai, Thailand
4. Department of Chemistry, Faculty of Science, Khon Kaen University, 40002 Khon Kaen, Thailand
5. The Forest Herbarium, Department of National Park, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, 10900 Bangkok, Thailand