1. State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 132 Lanhei Road, Kunming, 650201, China
2. School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, China
3. Department of Chemistry, Kunming University, 2 Puxing Road, Kunming, 650214, China