You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1R,2S,6S,7R)-7-(3-nitrobenzoyl)-4-(4-nitrophenyl)-4,8,9-triazatricyclo[6.4.0.02,6]dodeca-9,11-diene-3,5-dione into its molecular formula.
user
C22H15N5O7
assistant