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