You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name [2,3,4-tricyano-5-[(1S,2R,5S)-5-methyl-2-propan-2-ylcyclohexyl]oxycarbonylcyclopenta-2,4-dien-1-ylidene]methylideneazanide into its molecular formula.
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C20H19N4O2-
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