N1,N3-Dibenzyloxymethylthymine

2-[(5-methyl-2,4-dioxopyrimidin-1-yl)methoxy]ethyl acetate

2'-Deoxy-3'-O-[(2-methyl-2-propanyl)(diphenyl)silyl]-3,4-dihydrot hymidine

1-[(4-fluorophenyl)methyl]-5-methylpyrimidine-2,4-dione

1-(5-hydroxypentyl)-5-methylpyrimidine-2,4-dione