You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3S,4S)-3-(3-cyclopropyl-1H-1,2,4-triazol-5-yl)-4-(methoxymethyl)pyrrolidin-1-yl]-(2,4-dimethylphenyl)methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H26N4O2
assistant