(3aR,5R,6R,6aR)-6-Benzyloxy-5-(2,2-dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-6-vinyl-tetrahydro-furo[2,3-d][1,3]dioxole

(R)-1-((3aR,5R,6R,6aR)-6-Benzyloxy-2,2-dimethyl-6-vinyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-2-(tert-butyl-dimethyl-silanyloxy)-ethanol

3',5'-di-O-benzyl-5-methyl-3'-C,4'-C-ethoxymethyleneuridine

((3aR,4aR,5R,8S,8aR,8bR)-8a-Benzyloxy-5-methoxy-2,2,6-trimethyl-3a,4a,5,8,8a,8b-hexahydro-benzo[4,5]furo[2,3-d][1,3]dioxol-8-yl)-methanol

7a-benzyloxy-2,2-dimethylhexahydrocyclopenta[4,5]furo[2,3-d][1,3]dioxol-5-one

1-((2R,3S,3aS,7aR)-3a-Benzyloxy-7a-benzyloxymethyl-3-hydroxy-hexahydro-furo[2,3-c]pyran-2-yl)-5-methyl-1H-pyrimidine-2,4-dione

(5R)-3-O-Benzyl-6,7-dideoxy-1,2-di-O-isopropylidene-3-C-vinyl-α-D-ribo-hept-6-enofuranose

(1R,2R,6R,8R,9S)-1-Benzyloxy-9-hydroxy-4,4-dimethyl-3,5,7-trioxatricyclo[6.3.0.02.6]undec-10-ene

1-((2R,3aR,7aR)-3a-Benzyloxy-7a-benzyloxymethyl-3-oxo-hexahydro-furo[2,3-c]pyran-2-yl)-5-methyl-1H-pyrimidine-2,4-dione

(5S)-3-O-Benzyl-6,7-dideoxy-1,2-di-O-isopropylidene-3-C-vinyl-α-D-ribo-hept-6-enofuranose

(3aR,4aR,5R,8S,8aR,8bR)-8a-Benzyloxy-5-methoxy-2,2,6-trimethyl-8-trityloxymethyl-3a,4a,5,8,8a,8b-hexahydro-benzo[4,5]furo[2,3-d][1,3]dioxole

2,2-Dimethyl-propionic acid (3S,3aS,4S,7R,7aR)-3a-benzyloxy-3-hydroxy-7-methoxy-6-methyl-2,3,3a,4,7,7a-hexahydro-benzofuran-4-ylmethyl ester

(1S,6R,8R,9R)-1-hydroxy-6-hydroxymethyl-9-methoxy-8-(thymin-1-yl)-4,7-dioxabicyclo[4.3.0]nonane

2,2-Dimethyl-propionic acid (1S,4R,5R,6S)-6-benzyloxy-6-((S)-1,2-dihydroxy-ethyl)-5-hydroxy-4-methoxy-3-methyl-cyclohex-2-enylmethyl ester

(3aR,5R,6R,6aR)-6-Benzyloxy-5-((Z)-(R)-1-methoxy-3-nitro-allyl)-2,2-dimethyl-6-vinyl-tetrahydro-furo[2,3-d][1,3]dioxole

1-{(2R,3S,3aS,7aR)-7a-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-3a-hydroxy-3-methoxy-hexahydro-furo[2,3-c]pyran-2-yl}-5-methyl-1H-pyrimidine-2,4-dione

1,2-di-O-acetyl-3-C-acetoxyethyl-3,5-di-O-benzyl-4-C-(p-toluenesulfonyloxymethyl)-D-ribofuranose

3,5-di-O-benzyl-1,2-O-isopropylidene-4-C-(p-toluenesulfonyloxymethyl)-3-C-vinyl-α-D-ribofuranose

1-((2R,3S,3aS,7aR)-3a-Benzyloxy-7a-benzyloxymethyl-3-methoxy-hexahydro-furo[2,3-c]pyran-2-yl)-3-benzyloxymethyl-5-methyl-1H-pyrimidine-2,4-dione