You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 9-carbamimidoyl-9-[2-[[2-[cyanomethyl-[(2S)-2,3-dimethylcyclopropyl]amino]-2-oxoethyl]amino]ethyl]-3-N,3-N,6-N,6-N-tetramethylfluorene-3,6-dicarboxamide is given. What is its corresponding molecular formula?
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C31H39N7O3
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