You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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N-(3-chlorophenyl)-1-[3-(4-fluorophenyl)-[1,2]oxazolo[5,4-d]pyrimidin-4-yl]piperidine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
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C23H19ClFN5O2
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