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 ethyl 5-isocyano-3-(3-methylbut-2-enyl)-2-[3-[(2-methylpropan-2-yl)oxycarbonylamino]piperidin-1-yl]imidazole-4-carboxylate is given. What is its corresponding molecular formula?
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C22H33N5O4
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