You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule [(3aR,4S,6aS)-4-phenyl-2,3,3a,4,6,6a-hexahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl]-(1H-pyrazol-5-yl)methanone into molecular formula.
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C16H18N4O
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