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 1-[(2S)-2-amino-3,3-dimethylbutanoyl]-N-(3-chloro-4-fluorophenyl)piperidine-4-carboxamide is given. What is its corresponding molecular formula?
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C18H25ClFN3O2
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