1. State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
2. Natural Products Research Center of Guizhou Province, Guiyang 550014, China
3. School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
4. School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China