You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 9-hydroxy-10-[4-(6-oxo-1H-pyridin-2-yl)butan-2-ylamino]-1,3-diazatricyclo[6.4.1.04,13]trideca-4,6,8(13)-trien-2-one by IUPAC nomenclature, provide its molecular formula.
user
C20H24N4O3
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