You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [1-amino-2-[3-(4-methoxyphenyl)anilino]-2-oxo-1-[4-(1H-pyrazol-4-yl)phenyl]ethyl] acetate into its molecular formula.
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C26H24N4O4
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