You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3R)-3-[methyl-[(1S,2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]cyclohexyl]carbamoyl]-5-oxopentanoic acid into its molecular formula.
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C18H30N2O6
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