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 (3S,4S)-4-(4-fluorophenyl)-1-methyl-N-(2-methylsulfanylphenyl)-2-oxopyrrolidine-3-carboxamide using the IUPAC nomenclature.
user
C19H19FN2O2S
assistant