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 17-(2,4,6-trimethylphenyl)spiro[1-azaheptacyclo[13.11.1.02,14.03,11.04,9.019,27.020,25]heptacosa-2(14),3(11),4,6,8,12,15,17,19(27),20,22,24-dodecaene-10,9'-fluorene]-26-one into molecular formula.
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C47H31NO
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