methyl (2S,3R)-2-[[9-[(3aR,4R,6R,6aR)-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-2-methoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]purin-6-yl]carbamoylamino]-3-(oxan-2-yloxy)butanoate 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以95%的产率得到methyl (2S,3R)-2-[[9-[(3aR,4R,6R,6aR)-6-(hydroxymethyl)-2-methoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]purin-6-yl]carbamoylamino]-3-(oxan-2-yloxy)butanoate