1-[(6R,8R,9R)-4-amino-9-[tert-butyl(dimethyl)silyl]oxy-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,2-dioxo-1,7-dioxa-2λ⁶-thiaspiro[4.4]non-3-en-8-yl]pyrimidine-2,4-dione

1-((2R,3R,4S,5R)-4-butyl-3-((tert-butyldimethylsilyl)oxy)-5-(((tert-butyldimethylsilyl)oxy)methyl)-4-hydroxytetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione

尿嘧啶

(2S,3R,4R,5R)-4-[tert-butyl(dimethyl)silyl]oxy-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-5-(2,4-dioxopyrimidin-1-yl)oxolane-3-carbonitrile

(2S,3S,4R,5R)-4-[tert-butyl(dimethyl)silyl]oxy-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-5-(2,4-dioxopyrimidin-1-yl)oxolane-3-carbonitrile