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What is the molecular formula of the molecule identified by 1-[(1R,3R,4R,6S,7S)-1-ethyl-6,7-dimethyl-2-oxa-5-azabicyclo[2.2.1]heptan-3-yl]-5-methylpyrimidine-2,4-dione ?
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C14H21N3O3
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