You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-ethynyl-1,3-difluoro-5-pentylbenzene;methyl 4-[2-(2,6-difluoro-4-pentylphenyl)ethynyl]benzoate;methyl 4-iodobenzoate .
user
C42H41F4IO4
assistant