1. Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan, China
2. Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
3. Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
4. Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
5. School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang, China