benzyl 4,6-O-benzylidene-2-benzyloxyacetamido-2-deoxy-α-D-glucopyranoside

benzyloxyacetic anhydride

benzyl 4,6-O-benzylidene-2-amino-2-deoxy-α-D-glucopyranoside

t-butoxycarbonyl-L-valyl-D-isoglutamine benzyl ester

1,3-dioxo-1,3,3a,4,7,7a-hexahydro-2H-4,7-methanoisoindol-2-yl (tert-butoxycarbonyl)valinate