You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5R)-5-(4-tert-butylphenyl)-1-[2-(dimethylamino)ethyl]-4-[(4-ethoxy-2-methylphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
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