You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-[2-(3,4-dimethoxyphenyl)ethyl]-4-(4-fluorophenyl)-6-(trifluoromethyl)pyrimidin-2-amine using the IUPAC nomenclature.
user
C21H19F4N3O2
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