You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-[hydroxy-(3-methoxyphenyl)methylidene]-5-(4-propan-2-ylphenyl)-1-(pyridin-3-ylmethyl)pyrrolidine-2,3-dione .
user
C27H26N2O4
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