5-[(1-methylethyl)oxy]-2-pyridinamine 、
N-(3-[(1,1-dimethylethyl)oxy]-2-{[(1,1-dimethylethyl)oxy]carbonyl}-3-oxopropanoyl)glycine 以
dichlorobenzene, 1,2- 为溶剂,
反应 0.5h,
以33%的产率得到N-({4-hydroxy-7-[(1-methylethyl)oxy]-2-oxo-2H-pyrido[1,2-a]pyrimidin-3-yl}carbonyl)glycine