作者:J. C. Lancelot、B. Letois、C. Saturnino、D. Perrine、M. Robba                                    
                                    
                                        DOI:10.1080/00397919308011248
                                    
                                    
                                        日期:1993.6
                                    
                                    The synthesis of beta-lactams was carried out by N-arylpropionamide cyclisation in a mixture of N,N-dimethylformamide and anhydrous sodium carbonate under nitrogen atmosphere with 50 to 90% yield.