1. Center of Drug Discovery State Key Laboratory of Natural Medicines China Pharmaceutical University 24 Tongjiaxiang Nanjing 210009 P. R. China
2. School of Science China Pharmaceutical University 24 Tongjiaxiang Nanjing 210009 P. R. China
3. Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease China Pharmaceutical University 24 Tongjiaxiang Nanjing 210009 P. R. China