3',5'-O-(1,1,3,3-Tetraisopropyl-1,3-disiloxanediyl)uridine

1-((6aR,8R,9R,9aS)-9-hydroxy-2,2,4,4-tetraisopropyl-6a,8,9,9a-tetrahydro-6H-furo[3,2-f ][1,3,5,2,4]trioxadisilocin-8-yl)pyriMidine-2,4(1H,3H)-dione