You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-3-[2-[(1S,8S)-4-azatricyclo[4.3.1.13,8]undecan-4-yl]-2-oxoethyl]-3-(2-fluorophenyl)-1-(2-methoxyethyl)pyrrolidine-2,5-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31FN2O4
assistant