Trifluoro-acetic acid (2R,3R,4S,6S)-6-methoxy-2,4-dimethyl-4-(2,2,2-trifluoro-acetylamino)-tetrahydro-pyran-3-yl ester

methyl 2,3,6-trideoxy-3-C-methyl-4-O-methyl-3-nitro-α-D-xylo-hexopyranoside

methyl 2,3,6-trideoxy-3-C-methyl-3-trifluoroacetamido-α-D-ribo-hexopyranoside

methyl 2,3,6-trideoxy-3-C-methyl-3-trifluoroacetamido-α-D-erythro-hexopyranosid-4-ulose