You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[2-[3-[(3S,5R)-3,5-dimethylpiperidin-1-yl]propylamino]-2-oxoethyl]-1-methylindole-2-carboxylic acid into molecular formula.
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C22H31N3O3
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