1. Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
2. Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518000, China
3. University of Chinese Academy of Sciences, Beijing, 100049, China
4. School of Basic Medicine/State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, 550014, China