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 4-[[12-(4-hexan-3-ylpiperazin-1-yl)-8-oxo-15-oxa-14-azatetracyclo[7.6.1.02,7.013,16]hexadeca-1(16),2,4,6,9,11,13-heptaen-10-yl]amino]benzoic acid into molecular formula.
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C31H32N4O4
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