ethyl 9-(1-(tert-butoxycarbonyl)piperidin-4-yl)-2-(3-hydroxyphenyl)-8-oxo-8,9-dihydro-7H-purine-6-carboxylate 、
ethyl 5-amino-6-(1-(tert-butoxycarbonyl)piperidin-4-ylamino)-2-(3-hydroxyphenyl)pyrimidine-4-carboxylate 、 在
乙酸乙酯 、 hexanes 作用下,
以
二氯甲烷 为溶剂,
以to afford the title compound (0.050 g, 19%)的产率得到2-(3-Hydroxyphenyl)-8-oxo-9-(piperidin-4-YL)-8,9-dihydro-7H-purine-6-carboxamide