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Name the molecular formula for the molecule established as 1-ethyl-5-[(4S)-5-methyl-4-phenyl-4,5-dihydro-1,3-oxazol-2-yl]-N-(oxan-4-yl)pyrazolo[3,4-b]pyridin-4-amine using the IUPAC nomenclature.
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C23H27N5O2
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