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 ethyl N-(7-thiophen-2-yl-1H-imidazo[4,5-b]pyridin-5-yl)carbamate;7-thiophen-2-yl-1H-imidazo[4,5-b]pyridin-5-amine into molecular formula.
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C23H20N8O2S2
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