You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4E,5R)-1-[2-(diethylamino)ethyl]-5-(4-ethoxyphenyl)-4-[(4-ethoxyphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H34N2O5
assistant