You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[furan-2-ylmethyl-[2-[(2S,4R,5S)-1,2,5-trimethyl-4-phenylpiperidin-4-yl]ethyl]amino]acetonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H31N3O
assistant