You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-methyl-N-[1-(1-prop-2-enoylazepan-3-yl)-8,9-dihydro-7H-[1,4]dioxepino[2,3-e]benzimidazol-2-yl]pyridine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C26H29N5O4
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