N-A-BOC-(N-G-TS)-D-ARG

N-Boc-N'-tosyl-D-histidine

N-Boc-O-Benzyl-D-serine

N-(tert-Butoxycarbonyl)-O-benzyl-D-threonine

N-BOC-O-Benzyl-L-serine

Boc-O-Benzyl-L-threonine

Boc-4-Amino-D-phenylalanine

Boc-4-Amino-L-phenylalanine

BOC-4-NITRO-L-PHENYLALANINE