You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[2-[methyl-[(2-methylpropan-2-yl)oxycarbonyl]amino]ethylamino]cyclohexane-1-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C15H28N2O4
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