You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[(6-pyrrolidin-1-ylpyrimidin-4-yl)amino]ethyl]-2-[4-(trifluoromethyl)phenyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H22F3N5O
assistant