You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[2-[[(2S)-2-amino-3-methylbutanoyl]amino]acetyl]-naphthalen-2-ylamino]-5-(diaminomethylideneamino)pentanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H33N7O3
assistant