1. Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Fourth Military Medical University, Xi’an, Shaanxi 710032, China
2. Faculty of Pharmacy, School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China
3. Artemisinin Research Center, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510405, China