You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (5R)-5-(1,3-benzodioxol-5-ylmethyl)-5-methyl-1-[3-(pyridin-3-ylamino)propyl]piperidin-2-one into molecular formula.
user
C22H27N3O3
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