You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-amino-N-[2-[(1-amino-3-oxopentan-2-yl)amino]-2-oxoethyl]-2-(cyclopentylmethyl)butanamide into molecular formula.
user
C17H32N4O3
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