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 3-[3-(1H-benzimidazol-2-yl)prop-2-enoyl]-7-chloro-1-methyl-4-phenylquinolin-2-one .
user
C26H18ClN3O2
assistant