You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-N,7-N-di(dibenzofuran-3-yl)-3-N,7-N-bis(4-phenylphenyl)-[1]benzothiolo[2,3-b]pyrazine-3,7-diamine into molecular formula.
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C58H36N4O2S
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