You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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ethyl 1-[3-fluoro-7-methoxy-1-(naphthalen-2-ylmethyl)pyrazolo[4,3-d]pyrimidin-5-yl]pyrazole-4-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
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C23H19FN6O3
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