You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[4-(3-azabicyclo[3.2.0]heptan-6-yloxy)pyrimidin-5-yl]-2-(2,6-difluorophenyl)-1,3-thiazole-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C20H17F2N5O2S
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