1. Center for Drug Discovery, College of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China, Jiangsu Center for Drug Screening, China Pharmaceutical University, 1 Shennonglu, Nanjing 210038, China, Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens 11635, Greece, and Organic Chemistry Laboratory, Department of Chemistry, University of Athens, Panepistimiopolis, Athens 15771, Greece