1. Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
2. State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
3. Warshel Institute for Computational Biology, and General Education Division, The Chinese University of Hong Kong, Shenzhen 518172, P. R. China