Key Laboratory of Medicinal Chemistry for Natural Resources Ministry of Education and Yunnan Province School of Chemical Science and Technology Yunnan University Kunming 650091 China;
Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences the National Kunming High Level Biosafety Research Center for Nonhuman Primate KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China;
School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products Kunming Medical University Kunming 650500 China;
Chemical Biology Laboratory Center for Cancer Research National Cancer Institute National Institutes of Health Frederick MD 21702 USA;
