三正丁基锡氰化物 、
(2R,3R,4R,5R)-4-acetyloxy-2-(acetyloxymethyl)-5-[6-(cyclopentylamino)-2-iodopurin-9-yl]oxolan-3-yl acetate 在
四(三苯基膦)钯 乙酸乙酯 、 silica gel 、 Ethanol hexane 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以to provide (2R,3R,4R,5R)-4-acetyloxy-2-(acetyloxy-methyl)-5-[2-cyano-6-(cyclopentylamino)purin-9-yl]oxolan-3-yl acetate (0.65 g)的产率得到(2R,3R,4R,5R)-4-acetyloxy-2-(acetyloxy-methyl)-5-[2-cyano-6-(cyclopentylamino)purin-9-yl]oxolan-3-yl acetate