You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(5-cyclobutyl-1,2,4-oxadiazol-3-yl)ethyl]-N-[1-(2-phenylmethoxyacetyl)piperidin-3-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H32N4O4
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