1. Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Key Laboratory of Research & Development for Natural Products, School of Pharmacy, Yunnan University, Kunming, 650091, P. R. China
2. Jiangxi Fangzhu Pharmaceutical Co., Ltd., Xinyu 338000, P.R. China
3. State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P.R. China