You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-[3-(3-methoxyphenyl)phenyl]-1-[2-(methylamino)-2-oxoethyl]piperidine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27N3O3
assistant