(6-((5-Fluoro-2-((3,4,5-Trimethoxyphenyl)Amino)Pyrimidin-4-yl)Amino)-2,2-Dimethyl-3-Oxo-2,3-Dihydro-4H-Pyrido(3,2-B)(1,4)Oxazin-4-Yl)Methyl Dihydrogen Phosphate
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)-