(3aS,5S,5aS,8aR,8bS)-4,4-Difluoro-1,7,7-trimethyl-octahydro-2,6,8-trioxa-1-aza-as-indacen-5-ol

1-[(1S,2S,3R)-5-fluoro-3,6-(tetraisopropyldisiloxane-1,3-diyl)cylopent-4(5)-en-2-ol-1-yl]uracil

O-((8S,9S,9aR)-8-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-7-fluoro-2,2,4,4-tetraisopropyl-6,8,9,9a-tetrahydrocyclopenta[f][1,3,5,2,4]trioxadisilocin-9-yl) O-phenyl carbonothioate

1-[(1S,4S)-2-fluoro-4,6-(tetraisopropyldisiloxane-1,3-diyl)cylopent-2(3)-en-1-yl]uracil

(4S,5S)-2,2-dimethyl-4-((S)-oxiran-2-yl)-5-vinyl-1,3-dioxolane