[5S-(5α,7α,8β,9β)]-1,3-diaza-8,9-dihydroxy-7-(hydroxymethyl)-6-oxaspiro[4.4]nonane-2,4-dione
benzyl 1-allophanoyl-2,3,4-tri-O-benzyl-1-dehydro-β-D-ribopyranoside
benzyl 2,3,4-tri-O-benzyl-1-carbamoyl-1-dehydro-β-D-ribopyranoside
(2S,3R,4R,5R)-2,3,4,5-Tetrakis-benzyloxy-tetrahydro-pyran-2-carboxylic acid
(2S,3R,4R,5R)-2,3,4,5-Tetrakis-benzyloxy-tetrahydro-pyran-2-carbaldehyde