You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-methyl-7-[(2S,3S)-2-methylpiperidin-3-yl]-2-[4-(trifluoromethyl)cyclohexyl]pyrazolo[1,5-a]pyrimidine into molecular formula.
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C20H27F3N4
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