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 (3S)-1-[2-(2-methylpyridin-3-yl)-6-[4-(trifluoromethyl)phenyl]pyrimidin-4-yl]pyrrolidin-3-ol .
user
C21H19F3N4O
assistant