You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (5S,10S)-10-ethyl-1-methyl-9-(pyridin-4-ylmethyl)-1,9-diazaspiro[4.5]decan-2-one is given. What is its corresponding molecular formula?
user
C17H25N3O
assistant