You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (5S)-1-benzyl-5-(3,4-dichlorophenyl)-4-[hydroxy-[(2R)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]pyrrolidine-2,3-dione .
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C27H21Cl2NO4
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