1. State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
2. The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550002, China
3. School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
4. The Institute of Biotechnology and Germplasm Resources, Yunnan Academy of Agricultural Sciences, Kunming 650204, China
5. Research Unit of Chemical Biology of Natural Anti-Virus Products, Chinese Academy of Medical Sciences, Kunming 650201, China
6. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China