1 2RC [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 1.000 2 585 6-({5-fluoro-2-[(3,4,5-trimethoxyphenyl)amino]pyrimidin-4-yl}amino)-2,2-dimethyl-2h-pyrido[3,2-B][1,4]oxazin-3(4h)-one 0.850