You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule [2-(2-methylanilino)-2-oxoethyl] 12-oxo-7,8,9,10-tetrahydro-6H-azepino[2,1-b]quinazoline-3-carboxylate into molecular formula.
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C23H23N3O4
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