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system
Name the molecular formula for the molecule established as [4-(2,6-diazaspiro[3.3]heptan-2-yl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-(4-phenylphenyl)methanone using the IUPAC nomenclature.
user
C25H25N5O
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