You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-benzyl-2-[(3-methoxyphenyl)methyl]-4-(methylamino)-6-oxo-1-(pyridin-2-ylmethyl)pyridine-3-carboxamide into molecular formula.
user
C28H28N4O3
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