You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 2-[4-[4-(3,4-difluorobenzoyl)piperidin-1-yl]-4-oxobutyl]-7-methyl-3H-pyrrolo[2,3-d]pyrimidin-4-one ?
user
C23H24F2N4O3
assistant