6-((2-Chloro-5-fluoropyrimidin-4-yl)amino)-2,2-dimethyl-2H-benzo[b][1,4]oxazin-3(4H)-one 5g

6-((2-Chloro-5-fluoropyrimidin-4-yl)amino)-2,2-dimethyl-2H-benzo[b][1,4]oxazin-3(4H)-one 5g