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 1-(2,5-dioxopyrrolidin-1-yl)oxycarbonyloxyethyl 4-[(2,5-dioxopyrrol-1-yl)methyl]cyclohexane-1-carboxylate .
user
C19H22N2O9
assistant