A convenient preparation of monosubstituted N,N'-di(Boc)-protected guanidines

Article abstract of DOI:10.1055/s-1994-25527

1-H-Pyrazole-1-[N,N'-bis(tert-butoxycarbonyl)]carboxamidine (1) reacts under mild conditions with a number of amines and amino acids to give the respective protected guanidines in moderate to high isolated yields.