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 N-[3-(6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-3-yl)phenyl]-3,4-dimethylbenzenesulfonamide using the IUPAC nomenclature.
user
C19H20N4O2S
assistant