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system
Name the molecular formula for the molecule established as N-ethyl-N-[2-[ethyl(naphthalen-1-ylmethyl)amino]ethyl]-4-oxo-4-(6-oxo-5H-pyrido[2,3-b][1,4]benzodiazepin-11-yl)butanamide using the IUPAC nomenclature.
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C33H35N5O3
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