1. School of Pharmaceutical Sciences, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang 050017, P. R. China
2. Core Facilities and Centers, Hebei Medical University, Shijiazhuang 050017, P. R. China
3. New Drug Research and Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Hebei Industry Microbial Metabolic Engineering & Technology Research Center, Shijiazhuang 050015, P. R. China