1. College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
2. Ningbo Research Institute of Traditional Chinese Medicine, Ningbo, 315100, P. R. China
3. Zhejiang Pharmaceutical College, Ningbo, 315100, P. R. China
4. State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, P. R. China