1. College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
2. Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, 309 East Second Street, Pomona 91766, California, United States
3. State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310030, P. R. China
4. Department of Clinical Laboratory, The First Affiliated Hospital of Henan University of Chinese Medicine, Jinshui District 450046, Zhengzhou, P. R. China
5. Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China