3',5'-O-bis-(trimethylsilyl)-5-bromo-2'-deoxyuridine

L-胸苷

5'-O-[2-(o-nitrophenyl)prop-1-yloxycarbonyl]thymidine

2-[2-(4,4'-dimethoxytrityloxy)ethylsulfonyl]ethyl-(2-cyanoethyl)-(N,N-diisopropyl)-phosphoramidite

(2R,3S,5R)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-((((2-(pyridin-2-ylamino)ethoxy)carbonyl)oxy)methyl)tetrahydrofuran-3-yl acetate