You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-[2-(4-chlorophenyl)ethyl]-2,7-dimethylpyrazolo[1,5-a]pyrimidine-5-carboxamide is given. What is its corresponding molecular formula?
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C17H17ClN4O
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