(2S,3R)-3-hydroxy-2-methyl-2,3-dihydro-4H-pyran-4-one

methyl 2,3,6-trideoxy-3-(O-benzylhydroxyamino)-3-C-methyl-α-L-ribo-hexopyranoside

methyl 2,3,6-trideoxy-3-C-methyl-4,3-(2-N,N-dimethylamino-1-oxa-3-azaprop-2-eno)-α-L-ribo-hexopyranoside