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system
Name the molecular formula for the molecule established as tert-butyl 4-[[[2-carbamoyl-6-(2-chloropyridin-4-yl)imidazo[1,2-a]pyrazin-8-yl]amino]methyl]piperidine-1-carboxylate using the IUPAC nomenclature.
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C23H28ClN7O3
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