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What is the molecular formula of the compound with this IUPAC name methyl (3R,4aR,5R,7R)-7-tert-butyl-5-methyl-1-(naphthalen-1-ylmethyl)-2-oxo-3-[2-oxo-2-(4-phenylpiperidin-1-yl)ethyl]-3,4,5,7-tetrahydropyrano[4,3-b]pyridine-4a-carboxylate ?
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C39H46N2O5
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