2,4-dichlorophenyl 5'-O-(4,4'-dimethoxytrityl)thymidin-3'-yl phosphate triethylammonium salt 在
N-甲基咪唑 、
sodium hydroxide 、 MSNT 、
三苯基氯硅烷 作用下,
以
1,4-二氧六环 、
吡啶 为溶剂,
反应 3.5h,
生成 Phosphoric acid (2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester hexadecyl ester (2R,3S,4S,5S,6S)-3,4,5-trihydroxy-6-methoxy-tetrahydro-pyran-2-ylmethyl ester