1. Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People’s Republic of China, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, People’s Republic of China, and School of Pharmacy, Yantai University, No. 32 Road QingQuan, Laishan District, Yantai 264005, People’s Republic of China