You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[1-(2-fluorobenzoyl)piperidin-4-yl]-4-(1,3-thiazol-2-yl)-1H-pyrimidin-6-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H17FN4O2S
assistant