3',5'-bis-O-(tert-butyldimethylsilyl)-N2-(3-hydroxy-1-propyl)-2'-deoxyguanosine 在
silica gel 、 N-(2,2,6,6-tetramethyl-1-oxopiperidin-1-ium-4-yl)acetamide tetrafluoroborate 作用下,
以
二氯甲烷 为溶剂,
反应 13.0h,
以69%的产率得到3-[3,5-bis-O-(tert-butyldimethylsilyl)-2-deoxy-β-D-ribofuranosyl]-8-hydroxy-5,6,7,8-tetrahydropyrimido[1,2-a]purin-10(3H)-one