tert-butyl N-[2-[3-[1-[(3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-2,4-dioxopyrimidin-5-yl]prop-2-ynylamino]-2-oxoethoxy]carbamate 在
甲氧基胺盐酸盐 、
三氟乙酸 作用下,
以
氯仿 为溶剂,
反应 1.0h,
以50%的产率得到2-Aminooxy-N-{3-[1-((2R,3R,4S,5R)-3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl]-prop-2-ynyl}-acetamide