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system
Name the molecular formula for the molecule established as 6-cyclopropyl-N-[1-(1,3-difluoropropan-2-yl)-3-methylpyrazol-4-yl]-9-(2-trimethylsilylethoxymethyl)purin-2-amine using the IUPAC nomenclature.
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C21H31F2N7OSi
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