You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 7-[(1R)-1-[4-[[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl]phenoxy]ethyl]-[1,2,4]triazolo[1,5-a]pyrimidine .
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C20H15ClF3N5O
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