1. School of Medicinal and Chemical Engineering, Yangling Vocational & Technical College, 24 Weihui Road, Yangling 712100, Shaanxi, China
2. Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
3. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
4. Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, 712100, China