1. State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, People’s Republic of China
2. School of Pharmacuetical Sciences, Guizhou Medical University, Guiyang, People’s Republic of China
3. Key Laboratory of Chemistry for Natural Products of Guizhou Province, and Chinese Academy of Sciences, Guiyang, People’s Republic of China
4. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People’s Republic of China