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What is the molecular formula of the molecule identified by ethyl (1S)-5-[(2-oxo-3,4-dihydro-1H-pyrido[2,3-d]pyrimidin-5-yl)oxy]-1a,6b-dihydro-1H-cyclopropa[b][1]benzofuran-1-carboxylate ?
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C19H17N3O5
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