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 5-(3-chlorophenyl)-7-ethyl-3-[2-oxo-2-(2-pyridin-2-ylethylamino)ethyl]-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate into molecular formula.
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C25H25ClN4O3S
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