You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-cyanophenyl)-2-[[5-[4-(diethylamino)phenyl]-1,3,4-oxadiazol-2-yl]sulfanyl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H23N5O2S
assistant