You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-2-acetamido-N'-[3-(aminomethyl)phenyl]-N-(2-oxo-5-phenyl-1-phenylmethoxypentan-3-yl)butanediamide into its molecular formula.
user
C31H36N4O5
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