(2R-cis)-4-(2-amino-6-chloro-9H-purin-9-yl)tetrahydro-2-furanmethanol

(3aR,5S,6aR)-5-Isopropylphosphinoylmethyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxole

1-((3R,5R)-5-Dimethoxymethyl-tetrahydro-furan-3-yl)-1H-pyrimidine-2,4-dione

3,5-dideoxy-5-iodo-1,2-O-isopropylidene-α-D-erythropentofuranose

4(R)-<3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl>-2-hydroxymethyltetrahydro-2-furanmethanol