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 tert-butyl (2R)-4-(2,7-dichloro-8-fluoropyrido[4,3-d]pyrimidin-4-yl)-2-methylpiperazine-1-carboxylate is given. What is its corresponding molecular formula?
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C17H20Cl2FN5O2
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