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                                A new building block method to synthesize symmetrical and asymmetrical per-N-alkyl-substituted polyaza-crown compounds 
                                    
                                        作者:Krzysztof E. Krakowiak、Jerald S. Bradshaw、Reed M. Izatt、Daria J. Zamecka-Krakowiak                                     
                                        DOI:10.1021/jo00278a016
                                     
                                        日期:1989.8
                                     
 
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                                Bradshaw, Jerald S.; Krakowiak, Krzysztof E.; Huszthy, Peter, Journal of Heterocyclic Chemistry, 1991, vol. 28, # 3, p. 773 - 775 
                                    
                                        作者:Bradshaw, Jerald S.、Krakowiak, Krzysztof E.、Huszthy, Peter、Izatt, R. M.                                     
                                        DOI:——
                                     
                                        日期:——
                                     
 
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                                4-BENZYL-10,19-DIETHYL-4,10,19-TRIAZA-1,7,13,16-TETRAOXACYCLOHENEICOSANE (TRIAZA-21-CROWN-7) 
                                    
                                        作者:Krakowiak, Krzysztof E.、Bradshaw, Jerald S.                                     
                                        DOI:10.15227/orgsyn.070.0129
                                     
                                        日期:——
                                     
 
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                                KRAKOWIAK, KRZYSZTOF E.;BRADSHAW, JERALD S.;IZATT, REED M., TETRAHEDRON LETT., 29,(1988) N 29, C. 3521-3524 
                                    
                                        作者:KRAKOWIAK, KRZYSZTOF E.、BRADSHAW, JERALD S.、IZATT, REED M.                                     
                                        DOI:——
                                     
                                        日期:——