You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 3-[4-(4-methylpiperazin-1-yl)phenyl]-6-(3-nitrophenyl)pyrazolo[1,5-a]pyrimidin-7-amine is given. What is its corresponding molecular formula?
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C46H46N14O4
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