You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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(3R)-1-[(5-chloro-2-methoxyphenyl)methyl]-3-[(1-methylpyrazol-4-yl)methyl]pyrrolidine-2,5-dione is the IUPAC name of a molecule. Please give its molecular formula.
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C17H18ClN3O3
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