You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2S)-1-(methylamino)-1-oxopropan-2-yl]-4-(4-methylphenoxy)-N-[(3-methylphenyl)methyl]butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H30N2O3
assistant