You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name tert-butyl N-[(2R)-3-methyl-1-oxo-1-[2-[(2R)-oxolane-2-carbonyl]hydrazinyl]butan-2-yl]carbamate into its molecular formula.
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C15H27N3O5
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