2H-pyrido(3,2-b)-1,4-oxazin-3(4H)-one, 6-((5-fluoro-2-((3,4,5-trimethoxyphenyl)amino)-4-pyrimidinyl)amino)-2,2-dimethyl-4-((phosphonooxy)methyl)-
2H-Pyrido(3,2-B)-1,4-Oxazin-3(4H)-One, 6-((5-Fluoro-2-((3,4,5-Trimethoxyphenyl)Amino)-4-Pyrimidinyl)Amino)-2,2-Dimethyl-4-((Phosphonooxy)Methyl)-