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What is the molecular formula of the molecule 9H-fluoren-9-ylmethyl (2R,6S)-2-[6-[[4-(2,2-dimethylpropanoyloxy)phenyl]methoxy]-2-[(2-phenylacetyl)amino]-3,6-dihydropurin-9-yl]-6-(hydroxymethyl)morpholine-4-carboxylate ?
user
C45H46N6O8
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