carbohydrates composed of four sugar units
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1-O-acetyl-4,6-O-p-methoxybenzylidene-β-D-galactopyranose
(2S,4S,5R,6R)-4-Acetoxy-2-[(4aR,6S,7R,8R,8aS)-6-acetoxy-7-hydroxy-2-(4-methoxy-phenyl)-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-5-acetylamino-6-((1S,2R)-1,2,3-triacetoxy-propyl)-tetrahydro-pyran-2-carboxylic acid benzyl ester
2-oxoethyl 2,3,4,6-tetra-O-benzyl-α-D-glucopyranoside
allyl 4-O-benzoyl-2,3-di-O-methyl-α-Lfucopyranoside