1-[2-O-acetyl-5-O-benzyl-3-C-[(benzyloxy)methyl]-3-deoxy-β-D-erythro-pentofuranosyl]thymine

5-甲基脲嘧啶

5-methyl-1-[(2R,4R)-4-(trityloxymethyl)-3,6-dioxabicyclo[3.1.0]hexan-2-yl]pyrimidine-2,4-dione

1-[(2R,3S,4S,5S)-3-hydroxy-5-(hydroxymethyl)-4-(5-methyl-1,3,5-dithiazinan-2-yl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione

1-[5-O-(tert-butyldiphenylsilyl)-3-deoxy-3-C-formyl-β-D-arabino-pentofuranosyl]thymine