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 2-[(4-methyl-1,2,4-triazol-3-yl)sulfonyl]-2-phenyl-1-pyrrolidin-1-ylethanone using the IUPAC nomenclature.
user
C15H18N4O3S
assistant