{1-Cyano-2-[(3aR,4R,6R,6aR)-6-(6-dibenzoylamino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-ethyl}-phosphonic acid diethyl ester 在
sodium methylate 、
magnesium 作用下,
以
甲醇 为溶剂,
生成 2-[(3aR,4R,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-ylmethyl]-4-methyl-pentanenitrile