(2R,3S,3aR,9aR)-2-[6-Chloro-2-(trityl-amino)-purin-9-yl]-5,5,7,7-tetraisopropyl-3-methyl-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-ol 在
TEA 、
四丁基氟化铵 、
溶剂黄146 作用下,
生成
Acetic acid (2R,3R,4S,5R)-2-acetoxymethyl-5-[6-chloro-2-(trityl-amino)-purin-9-yl]-4-hydroxy-4-methyl-tetrahydro-furan-3-yl ester