You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-[2-methyl-7-(trifluoromethyl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrimidin-4-yl]-2-(1,3,5-trimethylpyrazol-4-yl)oxyethanone ?
user
C16H20F3N5O2
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