You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named acetyl acetate;[4-[2-chloro-5-(4-chlorophenyl)phenyl]-2-(2-hydroxyethyl)-2-methyl-5-oxo-1H-pyrrol-3-yl] acetate;3-[2-chloro-5-(4-chlorophenyl)phenyl]-4-hydroxy-5-(2-hydroxyethyl)-5-methyl-1H-pyrrol-2-one by IUPAC nomenclature, provide its molecular formula.
user
C44H42Cl4N2O10
assistant