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

1-<5-O-benzyl-3-C-<(benzyloxy)methyl>-3-deoxy-β-D-threo-pentofuranosyl>thymine

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

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

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

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

1-[5-O-(tert-butyldiphenylsilyl)-3-deoxy-3-C-(4,5-dihydro-5-methyl-1,3,5-dithiazin-2-yl)-β-D-arabino-pentofuranosyl]thymine

3-deoxy-3-<(phenylmethoxy)methyl>-5-O-(phenylmethyl)-α-D-ribofuranose diacetate

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

(2R,3R,4R,5S)-4,5-bis((benzyloxy)methyl)-2-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl methanesulfonate

5-甲基脲嘧啶

1-((2R,3S,4S,5S)-3-hydroxy-4-(5-methyl-1,3,5-dithiazinan-2-yl)-5-((trityloxy)methyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione