(3aS,4S,6R,6aR)-2,2-Dimethyl-6-{2-(4-pyridin-4-yl-pyrazol-1-yl)-6-[(R)-(tetrahydro-furan-3-yl)amino]-purin-9-yl}-tetrahydro-furo[3,4-d][1,3]dioxole-4-carboxylic acid 在
4-二甲氨基吡啶 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran 、
1-羟基苯并三唑 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
溶剂黄146 作用下,
以
水 、
N,N-二甲基甲酰胺 为溶剂,
生成 (2S,3S,4R,5R)-3,4-Dihydroxy-5-{2-(4-pyridin-4-yl-pyrazol-1-yl)-6-[(R)-(tetrahydro-furan-3-yl)amino]-purin-9-yl}-tetrahydro-furan-2-carboxylic acid ethylamide