for the following products
(S)-N-alpha-(9-Fluorenylmethyloxycarbonyl)-N,N'-bis-tert-butyloxycarbonyl-2-amino-4-guanidino-butyric acid | Fmoc-L-Norarginine(Boc)2-OH, (S)-N-alpha-(9-Fluorenylmethyloxycarbonyl)-N,N'-bis-tert-butyloxycarbonyl-2-amino-4-guanidino-butyric acid | Fmoc-norArg(Boc)2-OH and Fmoc-L-Agb(Boc)2-OH
