Parallel Synthesis, Evaluation, and Preliminary Structure−Activity Relationship of 2,5-Diamino-1,4-benzoquinones as a Novel Class of Bivalent Anti-Prion Compound
                                
                                    
                                        作者:Salvatore Bongarzone、Hoang Ngoc Ai Tran、Andrea Cavalli、Marinella Roberti、Paolo Carloni、Giuseppe Legname、Maria Laura Bolognesi                                    
                                    
                                        DOI:10.1021/jm100882t
                                    
                                    
                                        日期:2010.11.25
                                    
                                    A library of 11 entries, featuring a 2,5-diamino-1,4-benzoquinones nucleus as spacer connecting two aromatic prion recognition motifs, was designed and evaluated against prion infection. Notably. 6-chloro-1,2,3,4-tetrithydroacridine 10 showed an EC50 of 0.17 mu M, which was lower than that displayed by reference compound BiCappa. More importantly, 10 possessed the capability to contrast prion fibril formation and oxidative stress, together with a low cytotoxicity. This study further corroborates the bivalent strategy as a viable approach to the rational design of anti-prion chemical probes.