You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[6,6-dimethyl-2,4-dioxo-1-(pyridin-3-ylmethyl)-3-(trifluoromethyl)-5,7-dihydroindol-3-yl]-3,4,5-trimethoxybenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H28F3N3O6
assistant