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-phenyl-2-[4-[5-[6-phenyl-2-[3-[2-[4-[6-(4-phenylphenyl)-2-spiro[fluorene-9,9'-xanthene]-4'-ylpyrimidin-4-yl]phenyl]phenyl]spiro[fluorene-9,9'-xanthene]-4'-yl]pyrimidin-4-yl]naphthalen-2-yl]spiro[fluorene-9,9'-xanthene]-4'-yl]-6-pyridin-2-ylpyrimidine into molecular formula.
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C138H83N7O3
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