You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[(1R,2S,6S,7R)-3,5-dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl]-N-[2-(3-methoxyphenyl)-2-oxoethyl]-2-nitrobenzamide into its molecular formula.
user
C25H21N3O7
assistant