You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[2-nitro-4-(trifluoromethyl)phenyl]-1,4-dioxaspiro[4.5]deca-6,9-dien-8-imine .
user
C15H11F3N2O4
assistant