You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-[1-[2-(2,5-difluorophenyl)acetyl]piperidin-4-yl]-3-(oxolan-2-ylmethyl)-5-pyridin-2-ylimidazolidine-2,4-dione into its molecular formula.
user
C26H28F2N4O4
assistant