名称:
                                Synthesis of spiro-annelated pyroglutamides by the Ugi reaction
                             
                            
                                摘要:
                                Three component Ugi reaction between 1(2-oxoethyl)cycloalkanecarboxylic acids, amines and isocyanides affords spirocyclic N-substituted 5-carbamoyl-2-pyrrolidones.
                             
                                                            
                                    DOI:
                                    10.1016/j.mencom.2013.07.020