You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2S)-2-pyridin-3-yl-2-pyrrolidin-1-yl-N-[[4-(1,2,4-triazol-1-yl)phenyl]methyl]acetamide .
user
C20H22N6O
assistant