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 ethyl 1-(4-chlorophenyl)-2-methyl-4-(4-methylphenyl)imino-5-oxo-3-(phenylhydrazinylidene)pyrrolidine-2-carboxylate .
user
C27H25ClN4O3
assistant