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 4-(1,3-benzothiazol-2-ylsulfanylmethyl)-N-[(3R)-1,1-dioxothiolan-3-yl]-N-methylbenzamide .
user
C20H20N2O3S3
assistant