(1R,3R)-3-[[9-[(3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]purin-6-yl]amino]cyclopentan-1-ol 、
异丁酰氯 在
吡啶 作用下,
反应 5.0h,
以100%的产率得到[(3aR,4R,6R,6aR)-2,2-dimethyl-4-[6-[[(1R,3R)-3-(2-methylpropanoyloxy)cyclopentyl]amino]purin-9-yl]-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methyl 2-methylpropanoate