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 1-(2,4-dichlorophenyl)-4-[(3,4-difluorophenyl)methyl]-2-(6-methoxypyridin-3-yl)piperazine using the IUPAC nomenclature.
user
C23H21Cl2F2N3O
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