You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[3-(1,3-benzothiazol-2-yl)anilino]-N-(1,1-dioxothiolan-3-yl)-N-methylpropanamide .
user
C21H23N3O3S2
assistant