(1R,3R,4R,7S)-1-((双(4-甲氧基苯基)(苯基)甲氧基)甲基)-3-(2,4-二氧代-3,4-二氢嘧啶-1(2H)-基)-2,5-二氧杂双环[2.2.1]庚烷-7-基 (2-氰乙基) 二异丙基亚磷酰胺

(1R,3R,4R,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2,5-dioxabicyclo[2.2.1]heptan-7-yl (2-cyanoethyl) diisopropylphosphoramidite