5'-O-(tert-butyldimethylsilyl)-2',3'-O-isopropylidene-6-cyanouridine 在
羟胺 作用下,
以
乙醇 、
水 为溶剂,
以70%的产率得到3-[(3aR,4R,6R,6aR)-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-N'-hydroxy-2,6-dioxopyrimidine-4-carboximidamide