You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4-fluoro-4-pyridin-3-ylpiperidin-1-yl)-(7-methoxyimidazo[1,2-a]pyridin-3-yl)methanone .
user
C19H19FN4O2
assistant