1. College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
2. Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
3. Beijing Nuclear Magnetic Resonance Center, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
4. MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing 100084, People’s Republic of China
5. National Institutes for Food and Drug Control, Beijing 102629, People’s Republic of China