Acetic acid (2R,3S,5S)-5-(tert-butyl-dimethyl-silanyloxymethyl)-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-eth-(E)-ylidene-tetrahydro-furan-3-yl ester

1-[(2R,4R,5S)-4-Benzyl-5-(tert-butyl-dimethyl-silanyloxymethyl)-3-oxo-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione