(1R,3R,4R,7S)-1-benzoyloxymethyl-7-benzyloxy-3-(thymin-1-yl)-2,5-dioxabicyclo[2.2.1]heptane

1-(2-O-acetyl-3-O-benzyl-4-C-methanesulfonyloxymethyl-5-O-methanesulfonyl-β-D-erythro-pentofuranosyl)thymine

三甲基铝

5-bromo-2'-O,4'-C-methyleneuridine

六甲基二硅氮烷