You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[2-oxo-4-[4-(5,6,7,8-tetrahydroquinolin-2-yl)piperidine-1-carbonyl]piperidin-1-yl]acetic acid by IUPAC nomenclature, provide its molecular formula.
user
C22H29N3O4
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