You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(2R,6R)-2,6-dimethylpiperidin-1-yl]-3-(2-pyrrolidin-1-ylpyridin-3-yl)urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H27N5O
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