You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named tert-butyl N-[(2S)-1-[(8-chloro-2-morpholin-4-ylpyrido[3,4-d]pyrimidin-4-yl)amino]-3-phenylpropan-2-yl]carbamate by IUPAC nomenclature, provide its molecular formula.
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C25H31ClN6O3
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