1-[(2R,3R,5S)-5-(hydroxymethyl)-3-piperidin-1-yloxolan-2-yl]pyrimidine-2,4-dione

2’,3’-二脱氢-2’,3’-二脱氧尿苷

5’-O-三苯甲基尿苷-2’,3’-来苏-环氧化物

1-((2R,3R,5S)-3-(pyrrolidin-1-yl)-5-((trityloxy)methyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione

1-((2R,3R,5S)-3-(piperidin-1-yl)-5-((trityloxy)methyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione