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What is the molecular formula of the compound with this IUPAC name ethyl 3-[3-(4-chloro-3-hydroxyphenyl)-2-pyridin-4-ylpyrazolo[1,5-a]pyrimidin-7-yl]-5-ethyl-2-methylpyrrolidine-1-carboxylate ?
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C27H28ClN5O3
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