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What is the molecular formula of the compound with this IUPAC name (4aS,8aS)-1-methyl-7-[4-(5-methylfuran-2-yl)benzoyl]-3,4,5,6,8,8a-hexahydro-2H-1,7-naphthyridine-4a-carboxylic acid ?
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C22H26N2O4
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