1. Southwest Center for Natural Products Research, School of Natural Resources and the Environment, College of Agriculture, Life and Environmental Sciences, University of Arizona, 1064 E. Lowell Street, Tucson, Arizona 85719, United States
2. Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda 10250, Sri Lanka
3. Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States