You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(4-methoxyphenyl)methyl]-2-oxo-N-[(Z)-[4-(trifluoromethyl)phenyl]methylideneamino]pyridine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H18F3N3O3
assistant