You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-methoxy-N-[2-(3-methoxypropylamino)-2-oxo-1-[1-(3-phenylpropanoyl)piperidin-4-yl]ethyl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H37N3O5
assistant