methyl 2-(3-hydroxyphenyl)-8-oxo-9-(tetrahydro-2H-pyran-4-yl)-8,9-dihydro-7H-purine-6-carboxylate 、 methyl 2-(3-(tert-butyldiphenylsilyloxy)phenyl)-8-oxo-9-(tetrahydro-2H-pyran-4-yl)-8,9-dihydro-7H-purine-6-carboxylate 在
silica gel 作用下,
以
四丁基氟化铵 为溶剂,
反应 2.0h,
以to give the crude title compound (0.110 g, 58%) which的产率得到2-(3-hydroxyphenyl)-8-oxo-9-(tetrahydro-2H-pyran-4-yl)-8,9-dihydro-7H-purine-6-carboxamide