9-(3-benzoylthio-5-O-tert-butyldiphenylsilyl-2,3-dideoxy-α-D-erythro-pentofuranosyl)-6-isobutyrylaminopurine 在
四丁基氟化铵 、
sodium methylate 作用下,
生成 {(2R,3S,5S)-5-(6-Amino-purin-9-yl)-3-[(2R,3S,5S)-5-(6-amino-purin-9-yl)-2-hydroxymethyl-tetrahydro-furan-3-yldisulfanyl]-tetrahydro-furan-2-yl}-methanol 、 6-amino-9-(2,3-dideoxy-3-mercapto-α-D-erythro-pentofuranosyl)purine