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Under IUPAC nomenclature, a molecule named 1-cyclopentyl-N-[(3,5-dimethyl-1H-pyrazol-4-yl)methyl]-2-oxo-3,4,5,6-tetrahydrocyclopenta[b]pyridine-4a-carboxamide is given. What is its corresponding molecular formula?
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C20H28N4O2
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