You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[(2,4-difluorobenzoyl)amino]-N-[1-(3-methylbenzoyl)piperidin-4-yl]pyrazine-2-carboxamide into molecular formula.
user
C25H23F2N5O3
assistant