1. School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
2. School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
3. State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, P. R. China
4. School of Medicine and Life Sciences, State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China