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 [4-(3-chloro-4-fluorophenyl)piperazin-1-yl]-(6-cyclopropylpyrimidin-4-yl)methanone using the IUPAC nomenclature.
user
C18H18ClFN4O
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