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 3-[4-[4-(3,5-dimethylpyrazin-2-yl)piperazine-1-carbonyl]-3-fluorophenyl]-1,3-oxazolidin-2-one using the IUPAC nomenclature.
user
C20H22FN5O3
assistant