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-amino-N-(3-methylbutyl)-1-[(E)-(3-nitrophenyl)methylideneamino]pyrrolo[3,2-b]quinoxaline-3-carboxamide into molecular formula.
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C23H23N7O3
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