1. a Xinjiang Key Laboratory of Plant Resources and Natural Products Chemistry, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Urumqi, China
2. b Key Laboratory of Chemistry of Plant Resources of Arid Area, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Urumqi, China
3. c Bioseparation Technology Laboratory, Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health , Bethesda, Maryland, USA
4. d Beijing Institute of New Technology Application , Beijing, China