Affiliation: | a Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China b Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599-7568, USA c Duke University Medical Center, Durham, NC 27710, USA d Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan |