3-(benzyloxy)-9,9-dimethyl-N-((2-methylthiazol-5-yl)methyl)-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxamide 在
palladium 10% on activated carbon
氢气 作用下,
以
乙醇 、
乙酸乙酯 为溶剂,
反应 2.0h,
以92%的产率得到3-hydroxy-9,9-dimethyl-N-((2-methylthiazol-5-yl)methyl)-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxamide