You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 3-[(4R)-4-(3-nitrophenyl)-3-phenyl-5,10-dihydro-4H-pyrazolo[4,3-c][1,5]benzodiazepin-1-yl]propanenitrile into its molecular formula.
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C25H20N6O2
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