1,4-anhydro-2-deoxy-2-acetamido-3,5-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-4-thio-D-arabinitol

1,4-anhydro-2-O-(2,4-dimethoxybenzoyl)-2-C-methyl-3,5-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-4-sulfinyl-D-ribitol

N4-benzoyl-1-[2-O-(2,4-dimethoxybenzoyl)-2-C-methyl-3,5-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-4-thio-β-D-ribo-pentofuranosyl]cytosine