1. Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18 Tianshui Middle Road, Lanzhou 730000, China
2. Graduate University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
3. Department of Pharmacy, Gansu College of Traditional Chinese Medicine, No. 35 Dingxi East Road, Lanzhou 730000, China
4. School of Material Science and Engineering, Lanzhou University of Technology, No. 287 Langongping Road, Lanzhou 730050, China