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 2-[(2S)-1-[(3-methylpyridin-4-yl)methyl]pyrrolidin-2-yl]-5-propan-2-yl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine .
user
C21H24F3N5
assistant