Department of Pharmaceutical Analysis Key Laboratory of Drug Quality Control and Pharmacovigilance Ministry of Education China Pharmaceutical University Nanjing 210009 China;
Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 211198 China;
Jiangsu Food and Pharmaceutical Science College Huaian 223003 China;
Department of Medicinal Chemistry China Pharmaceutical University Nanjing 211198 China;