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-(1-methylindol-3-yl)-N-[(2R)-1-(2-oxo-1,3-benzoxazol-3-yl)propan-2-yl]propanamide into molecular formula.
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C22H23N3O3
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