You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[1-(tert-butylamino)-1-oxo-3-phenylpropan-2-yl]-N-[(3-methoxyphenyl)methyl]-4-phenoxybutanamide into its molecular formula.
user
C31H38N2O4
assistant