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What is the molecular formula of the molecule 7-[(4-fluoro-3-methylphenyl)methyl]-1'-(2-methylpyrimidin-4-yl)spiro[5,6,8,8a-tetrahydro-[1,3]oxazolo[3,4-a]pyrazine-1,4'-piperidine]-3-one ?
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C23H28FN5O2
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