反应条件
1: 1,4,7,10-tetraazacyclododecane-4,7,10-tris(acetic acid tert-butyl ester) With potassium carbonate in N,N-dimethyl-formamide T=80°C; 0.5 h; 2: monobromoacetic acid in N,N-dimethyl-formamide T=70°C; 2 h; Further stages.;
参考文献
Kohl, Stephan W.; Kuse, Katharina; Hummert, Markus; Schumann, Herbert; Muegge, Clemens; Janek, Katharina; Weisshoff, Hardy
Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, 2007 , vol. 62, # 3 p. 397 - 406