You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-[(2R)-2-[(3R)-1-(pyridin-4-ylmethyl)piperidin-3-yl]-3,5-dihydro-2H-1,4-benzoxazepin-4-yl]ethanone into molecular formula.
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C22H27N3O2
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