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What is the molecular formula of the molecule identified by (4R,7aR,12bS)-3-methyl-N-[2-[4-(2-methylidene-4-oxo-1H-pyrimidin-5-yl)phenyl]ethyl]-7-oxo-1,2,4,4a,5,6,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinoline-9-carboxamide ?
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C31H32N4O4
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