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 2-[1-iodo-1-(4,6,7-trifluoro-1H-benzimidazol-2-yl)ethyl]-3-methylbenzimidazole-5-carboxylic acid .
user
C18H12F3IN4O2
assistant