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What is the molecular formula of the compound with this IUPAC name 2-[(E)-[(3,4-difluorophenyl)-[4-[(5-methyl-6-oxospiro[1H-furo[3,4-c]pyridine-3,4'-piperidine]-1'-yl)methyl]phenyl]methylidene]amino]oxyacetonitrile ?
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C28H26F2N4O3
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