1-[(2R,4S,5R)-4-(8-Azido-octyloxymethoxy)-5-hydroxymethyl-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

1-[(2R,4S,5R)-4-(8-Amino-octyloxymethoxy)-5-hydroxymethyl-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

2,2,2-Trifluoro-N-{8-[(2R,3S,5R)-2-hydroxymethyl-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yloxymethoxy]-octyl}-acetamide