You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3R)-3-[[6-ethyl-1-[2-(methoxycarbonylamino)ethyl]-3,3-dimethyl-2-oxo-4H-quinoline-7-carbonyl]-propan-2-ylamino]piperidine-1-carboxylic acid into molecular formula.
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C27H40N4O6
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