You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[4-(3-cyanophenyl)-3,6-dihydro-2H-pyridin-1-yl]-1-methyl-2-oxoquinoline-3-carbonitrile into its molecular formula.
user
C23H18N4O
assistant