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 3-[7-(4-isocyanopyridin-3-yl)-9-(2-methyl-1,3-dioxoisoindol-4-yl)carbazol-2-yl]pyridine-4-carbonitrile into molecular formula.
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C33H18N6O2
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