1. State Key Laboratory of Characteristic Chinese Medicine Resources of Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
2. School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
3. Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao 266021, People’s Republic of China
4. Syngenta Jealott’s Hill International Research Centre, Berkshire RG42 6EY, U.K.