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system
Name the molecular formula for the molecule established as (2R)-N-[1-(3-chloro-4-fluorophenyl)-1-[3-(trifluoromethyl)cyclobutyl]ethyl]-2-methyl-3-oxopiperazine-1-carboxamide using the IUPAC nomenclature.
user
C19H22ClF4N3O2
assistant