1. School of Pharmaceutical Science, Liaoning University, Shenyang, People’s Republic of China
2. Research Center for Natural Product Pharmacy of Liaoning Province, Shenyang, China
3. Research Center for Computer Simulating and Information Processing of Bio-macromolecules of Liaoning Province, Shenyang, People’s Republic of China
4. School of Environmental Science, Liaoning University, Shenyang, People’s Republic of China