You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(2-bromo-4-fluorophenoxy)-N-[[3-methoxy-4-(oxolan-2-ylmethoxy)phenyl]methyl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H25BrFNO5
assistant