You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[[2-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoropyrimidin-4-yl]methyl]-4-methyl-4-thiophen-2-ylpentanoic acid by IUPAC nomenclature, provide its molecular formula.
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C22H20ClFN4O2S
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