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 1-(3-methoxyphenyl)-5-oxo-N-(3-phenyl-1,2,4-thiadiazol-5-yl)pyrrolidine-3-carboxamide using the IUPAC nomenclature.
user
C20H18N4O3S
assistant