You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (6R)-8-(2-hydroxyacetyl)-2-(pyridin-4-ylmethyl)-2,8-diazaspiro[5.5]undecan-3-one by IUPAC nomenclature, provide its molecular formula.
user
C17H23N3O3
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