You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 7-(3,5-difluorophenyl)-8-methyl-N-(oxan-3-yl)-6,7-dihydropyrimido[5,4-b][1,4]oxazin-2-amine;2-methylpyridine .
user
C24H27F2N5O2
assistant