1. Department of Natural
Products Chemistry, Shenyang Pharmaceutical University, Shenyang 110016, People’s Republic of China
2. Key Laboratory of Structure-Based
Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People’s
Republic of China
3. School
of Pharmacy, Yantai University, Yantai
264005, People’s Republic of China