You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(7E,9E,11E)-3-(8-fluoro-2-methylimidazo[1,2-a]pyridin-6-yl)-8-(1,2,3,6-tetrahydropyridin-4-yl)pyrido[1,2-a]azocin-6-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H21FN4O
assistant