1. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
2. School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
3. Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
4. Center of Pharmaceutical Technology, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
5. Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao 066600, China