You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(4-acetylanilino)-1-[(3R)-3-(furan-2-yl)-5-(5-methylfuran-2-yl)-3,4-dihydropyrazol-2-yl]ethanone into its molecular formula.
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C22H21N3O4
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