筛选产品
(2R,3R,4S,5S)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((tert-butyldimethylsilyl)oxy)-5-(1-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite,