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What is the molecular formula of the molecule 1-[(1R,5R,6S,7S)-6-[(dimethylamino)methyl]-10-oxa-3-azatricyclo[5.2.1.01,5]decan-3-yl]-2-[methyl(pyridin-4-ylmethyl)amino]ethanone ?
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C20H30N4O2
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