You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[3-[(2,2-dimethylpropanoylamino)methyl]piperidine-1-carbonyl]cyclopropane-1-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
user
C16H26N2O4
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