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-[(4R)-2,2-dimethyl-4-[3-(trifluoromethyl)phenyl]oxan-4-yl]ethyl]-4-methylpiperazine using the IUPAC nomenclature.
user
C21H31F3N2O
assistant