tert-butyl (3S)-3-<(2R,3R)-1-benzyloxycarbonyl-3-<(tert-butyldimethylsilyl)oxy>-2-pyrrolidinyl>-3-hydroxypropionate

methyl 3-C-(carbomethoxymethyl)-3,6-imino-2,3,5,6-tetradeoxy-N-trifluoroacetyl-β-D-lyxo-hexofuranoside

(2R,3R)-N-benzyloxycarbonal-3-<(1,1-dimethylethyl)dimethylsilyl>oxy-2-prolinal

methyl 3,6-imino-2-oxo-3,5,6-trideoxy-N-trifluoroacetyl-β-D-threo-hexofuranoside

(1R,3R,4R,5S)-4-(benzyloxy)-5-<(benzyloxy)carbonyl>-3-methoxy-2-oxa-6-azabicyclo<3.3.0>octane