1. Southwest Center for Natural Products Research, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, University of Arizona, 250 E. Valencia Road, Tucson, Arizona 85706, United States
2. Department of Natural Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, People’s Republic of China
3. School of Plant Sciences, College of Agriculture and Life Sciences, University of Arizona, Tucson, Arizona 85721, United States
4. Biosystems Engineering, College of Agriculture and Life Sciences, University of Arizona, Tucson, Arizona 85721, United States