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Can you give the molecular formula of the molecule 2-[4,6-difluoro-2-oxo-1'-(4-oxo-5,6,7,8-tetrahydro-3H-pyrido[2,3-d]pyrimidin-2-yl)spiro[indole-3,4'-piperidine]-1-yl]ethyl formate ?
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C22H23F2N5O4
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