2,5-anhydro-1,3,4,6-tetradeoxy-7-O-<(1,1-dimethylethyl)diphenylsilyl>-6-<<(phenylmethoxy)carbonyl>amino>-D-xylo-hept-3-enitol

phenyl 3,5-O-isopropylidene-1-seleno-β-L-xylofuranoside

3,6-anhydro-2,7-dideoxy-2-(2,2-diphenylhydrazino)-L-glycero-D-ido-heptono-1,4-lactone

3,6-anhydro-2,7-dideoxy-2-(2,2-diphenylhydrazino)-L-glycero-D-gulo-heptono-1,4-lactone

phenyl 2-O-<(diphenylhydrazono)acetyl>-1-seleno-β-L-xylofuranoside