Addition of Cyclic Ureas and 1-Methyl-2-oxazolidone to Pyridynes: A New Approach to Pyridodiazepines, Pyridodiazocines, and Pyridooxazepines
                                
                                    
                                        作者:Nozomi Saito、Ken-ichi Nakamura、Sayako Shibano、Soichiro Ide、Masabumi Minami、Yoshihiro Sato                                    
                                    
                                        DOI:10.1021/ol303352q
                                    
                                    
                                        日期:2013.1.18
                                    
                                    Reactions of pyridynes with cyclic urea and 1-methyl-2-oxazolidone were demonstrated. 3,4-Pyridyne and 2,3-pyridyne were reacted with N,N-dimethylimidazolidone, N,N-dimethylpropylene urea, and 1-methyl-2-oxazolidone to give the corresponding pyridodiazepines, pyridodiazocines, and pyridooxazepines, respectively.