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 5-ethyl-N-[2-methyl-2-(2-methyl-1H-indol-3-yl)propyl]thiophene-2-sulfonamide using the IUPAC nomenclature.
user
C19H24N2O2S2
assistant