Using CCOC(=O)CBr, COCn1c(-c2nccs2)cc2cccc(NS(=O)(=O)c3cccs3)c21 to produce CCOC(=O)CN(c1cccc2cc(-c3nccs3)n(COC)c12)S(=O)(=O)c1cccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.