You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-(dimethylamino)phenyl]-[3-(3-ethyl-1,2,4-triazol-4-yl)pyrrolidin-1-yl]methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H23N5O
assistant