You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(2-methyl-1,3-dioxoisoindol-5-yl)amino]-2-oxoethyl] 2-(1,3-dioxoisoindol-2-yl)-4-methylpentanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H23N3O7
assistant