1. State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, People’s Republic of China
2. Department
of Urology, Affiliated Hospital of Qingdao University, Qingdao 266003, People’s Republic of China
3. 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, Lanzhou 730000, People’s Republic of China
4. Department
of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States