You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[[2-(3,4-dichlorophenyl)acetyl]-[(2,6-dichlorophenyl)methyl]amino]-N-ethyl-3-phenylpropanamide into molecular formula.
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C26H24Cl4N2O2
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