You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (4R)-1-[(2S)-3,3-dimethyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoyl]-4-hydroxypyrrolidine-2-carboxylic acid into its molecular formula.
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C16H28N2O6
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