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 N-(4-oxo-5,6,7,8-tetrahydro-[1,3]thiazolo[5,4-c]azepin-2-yl)indolizine-2-carboxamide into molecular formula.
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C16H14N4O2S
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