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-O-[2-[2-(2-methoxyethoxy)ethoxy]ethyl] 4-O-[4-[3-methoxy-2-[[4-[(E)-5-[4-[3-methoxy-2-[(4-methoxybenzoyl)amino]-3-oxopropyl]phenoxy]-5-oxopent-1-enoxy]benzoyl]amino]-3-oxopropyl]phenyl] butanedioate .
user
C51H58N2O17
assistant