4,5-anhydro-1-O-benzyl-2-deoxy-3-O-(methoxymethyl)-D-threo-pentitol

4,5-anhydro-1-O-benzyl-2-deoxy-D-threo-pentitol

2-amino-5-O-benzyl-1,2,4-trideoxy-3-O-(methoxymethyl)-1-phenyl-D-threo-pentitol