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 N-(2,6-difluorophenyl)-3-(2-fluorophenyl)-6,7-dimethoxy-2-methyl-1-oxo-3,4-dihydroisoquinoline-4-carboxamide .
user
C25H21F3N2O4
assistant