You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2,2-difluoro-1-(1-fluoro-3-methoxy-2-methylpropan-2-yl)-3-(2-methoxyethyl)-4-methylimidazolidine into its molecular formula.
user
C12H23F3N2O2
assistant