You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(4-benzyl-2,2-dimethyl-3-oxocyclobutylidene)amino]-3-[4-[(3,5-dichloropyridine-4-carbonyl)amino]phenyl]propanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
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C28H25Cl2N3O4
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