(2R,3R,4R,5R)-2-((双(4-甲氧基苯基)(苯基)甲氧基)甲基)-5-(2-异丁酰胺基-6-氧代-1,6-二氢-9H-嘌呤-9-基)-4-(丙-2-炔-1-氧基)四氢呋喃-3-基 (2-氰乙基)二异丙基亚磷酰胺

(2R,3R,4R,5R)-2-((双(4-甲氧基苯基)(苯基)甲氧基)甲基)-5-(2-异丁酰胺基-6-氧代-1,6-二氢-9H-嘌呤-9-基)-4-(丙-2-炔-1-氧基)四氢呋喃-3-基 (2-氰乙基)二异丙基亚磷酰胺

(2R,3R,4R,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-isobutyramido-6-oxo-1,6-dihydro-9H-purin-9-yl)-4-(prop-2-yn-1-yloxy)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite