1. Natural
Products Research Laboratory, School of Science, Mae Fah Luang University, Chiang
Rai 57100, Thailand
2. Department
of Chemistry and Department of Earth, Ocean,
and Atmospheric Sciences, University of British Columbia, 2036
Main Mall, Vancouver, British
Columbia, Canada V6T 1Z1
3. School
of Chemistry, University of Wollongong, Wollongong, New South Wales 2522, Australia
4. Department
of Physiology, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand
5. Excellent
Center for Drug Discovery, Faculty of Science, Mahidol University, Rajathevi, Bangkok 10400, Thailand