(2R，3S，5R)-2-(((tert-ブチルジメチルケイ素基)酸素)メチル)-5-(5-メチル-2，4-二酸素代-3，4-二水素ピリミジン-1(2H)-基)テトラヒドロフラン-3-基酢酸エステル
(2R，3S，5R)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-(5-methyl-2，4-dioxo-3，4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl acetate
(2R，3S，5R)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-(5-methyl-2，4-dioxo-3，4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl acetate 95%