You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[2-amino-3-[1-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]-4H-quinazolin-6-yl]oxy]-N-cyclohexyl-N-methylbutanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H38N4O4
assistant