IUPAC:{[6-({5-fluoro-2-[(3,4,5-trimethoxyphenyl)amino]pyrimidin-4-yl}amino)-2,2-dimethyl-3-oxo-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-4-yl]methoxy}phosphonic acid
IUPAC:{[6-({5-fluoro-2-[(3,4,5-trimethoxyphenyl)amino]pyrimidin-4-yl}amino)-2,2-dimethyl-3-oxo-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-4-yl]methoxy}phosphonic acid