You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(4-acetyl-3,3-dimethyl-2-oxopiperazin-1-yl)-2-[[4-amino-5-(trifluoromethyl)pyrrolo[2,1-f][1,2,4]triazin-7-yl]methyl-methylamino]ethyl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H31F3N8O3
assistant