You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[5-[4-fluoro-2-(3-fluorophenyl)pyrrolidin-1-yl]pyrazolo[1,5-a]pyrimidin-3-yl]-formylamino]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H18F2N6O2
assistant