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What is the molecular formula of the compound with this IUPAC name (1R,3S)-3-acetamido-N-[5-chloro-4-(2,3,5,6,7,8-hexahydroimidazo[1,2-a]pyridin-3-yl)pyridin-2-yl]cyclohexane-1-carboxamide ?
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C21H28ClN5O2
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