{(3aS,6R,6aR)-6-[6-amino-2-(cyclopentyloxy)-9H-purin-9-yl]tetrahydrofuro[3,4-d][1,3]dioxole-4,4-diyl}dimethanol 、
{(3aS,6R,6aR)-6-[6-amino-2-(cyclopentyloxy)-9H-purin-9-yl]-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4,4-diyl}dimethanol 在
crude mixture 、 Acetonitrile ammonium acetate 、
水合甲醇 作用下,
以
water formic acid 为溶剂,
反应 15.0h,
以the desired product was obtained as a white solid (8.0 mg, >95% pure)的产率得到(3S,4R,5R)-5-[6-amino-2-(cyclopentyloxy)-9H-purin-9-yl]-2,2-bis(hydroxymethyl)tetrahydrofuran-3,4-diol