You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-ethenoxyethyl 1-[2-[4-(2-ethenoxyethoxycarbonyl)-2-oxopyrrolidin-1-yl]ethyl]-5-oxopyrrolidine-3-carboxylate .
user
C20H28N2O8
assistant