Microwave-accelerated Dimroth rearrangement for the synthesis of 4-anilino-6-nitroquinazolines. Application to an efficient synthesis of a microtubule destabilizing agent
                                
                                    
                                        作者:Alicia Foucourt、Carole Dubouilh-Benard、Elizabeth Chosson、Cécile Corbière、Catherine Buquet、Mauro Iannelli、Bertrand Leblond、Francis Marsais、Thierry Besson                                    
                                    
                                        DOI:10.1016/j.tet.2010.04.066
                                    
                                    
                                        日期:2010.6
                                    
                                    A useful and rapid access to 4-anilino-6-nitroquinazolines was investigated in a multi-gram scale via microwave-accelerated condensation and Dimroth rearrangement of the starting anilines with imines obtained by reaction of anthranilonitriles with formamide dimethylacetal. A novel short and efficient route to AZiXa (TM) (EPi28495, MPC-6827), a microtubule destabilizing agent and apoptosis inducer, was performed with success demonstrating that well controlled parameters offer comfortable using of microwave technology with safe and environmental benefits. (C) 2010 Elsevier Ltd. All rights reserved.