1. Institute
for Advanced Study, Chengdu University, Chengdu 610106, China
2. National
Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China