You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-methylbutoxymethyl)-N-(4-propan-2-ylphenyl)-7-[3-(trifluoromethyl)pyridin-2-yl]-8,8a-dihydropyrido[2,3-d]pyrimidin-4-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H32F3N5O
assistant