You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[1-[(5-ethylfuran-2-yl)methyl]piperidin-4-yl]-N-[[(2R)-1-ethylpyrrolidin-2-yl]methyl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H37N3O2
assistant