You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4E)-4-[2,3-dihydro-1,4-benzodioxin-6-yl(hydroxy)methylidene]-1-(3-methoxypropyl)-5-pyridin-4-ylpyrrolidine-2,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H22N2O6
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