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 (5R)-4-[(4-chlorophenyl)-hydroxymethylidene]-1-(2-morpholin-4-ylethyl)-5-phenylpyrrolidine-2,3-dione .
user
C23H23ClN2O4
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