You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (1-carbamoyl-7-methoxy-2H-[1,3]thiazolo[5,4-d]pyrimidin-2-yl) 4-[(3,5-dichlorophenyl)methyl]piperazine-1-carboxylate into its molecular formula.
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C19H20Cl2N6O4S
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