You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule methyl (1R,2R,4R)-2-[[3-(2-chlorophenyl)-2-fluorophenyl]carbamoyl]-4-fluorocyclopentane-1-carboxylate into molecular formula.
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C20H18ClF2NO3
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