Hao Gao1, Xin-Sheng Yao2. 1. Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China. Electronic address: tghao@jnu.edu.cn. 2. Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China. Electronic address: tyaoxs@jnu.edu.cn.