You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5R)-9-[(3R)-oxolan-3-yl]-2-pyridin-3-yl-2,9-diazaspiro[4.5]decan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H23N3O2
assistant