You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[[2-(2-methylimidazol-1-yl)pyridin-4-yl]methyl]-2-oxo-1H-quinoline-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C20H17N5O2
assistant