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 3-[(3,5-difluorophenyl)methyl]-1-pyridin-3-yl-5-[3-(trifluoromethyl)phenyl]-3H-indol-2-one .
user
C27H17F5N2O
assistant