2,2-Dimethyl-propionic acid (2S,4aR,5aR,6R,7R,8aR,9S,9aR)-7-(4-acetylamino-2-oxo-2H-pyrimidin-1-yl)-9-amino-2-phenyl-octahydro-furo[2',3':5,6]pyrano[3,2-d][1,3]dioxin-6-yl ester

7-(3-benzoyl-ureido)-6-[6-carboxy-3-(2,2-dimethyl-propionyloxy)-4-(2,2,2-trifluoro-acetylamino)-tetrahydro-pyran-2-yloxy]-3-(2,2-dimethyl-propionyloxy)-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-hexahydro-furo[3,2-b]pyran-5-carboxylic acid

1-[3,7-anhydro-5-azido-8-O-benzyl-5-deoxy-2-O-(2,2-dimethylpropionyl)-D-erythro-α-D-allo-octofuranosyl]-1H-3-(benzyloxymethyl)-5-iodopyrimidine-2,4-dione