(2S,3R)-3-((2R,3R,4R,5R)-3,4-bis((tert-butyldimethylsilyl)oxy)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)-N-((S)-1-hydroxybut-3-en-2-yl)-N-methyloxirane-2-carboxamide

(2S,3R)-3-((2R,3R,4R,5R)-3,4-bis((tert-butyldimethylsilyl)oxy)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)oxirane-2-carboxylic acid

1-((2R,3R,4R,5R)-3,4-bis((tert-butyldimethylsilyl)oxy)-5-((2R,3S)-3-(indoline-1-carbonyl)oxiran-2-yl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione

(2S,3R)-3-((2R,3R,4R,5R)-3,4-bis((tert-butyldimethylsilyl)oxy)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)-N-((S)-1-((tert-butyldimethylsilyl)oxy)but-3-en-2-yl)-N-methyloxirane-2-carboxamide