Using NC(=O)CBr, COc1ccc(CN(c2nccs2)S(=O)(=O)c2ccc3c(c2)OCCN3c2ccccc2O)cc1 to produce COc1ccc(CN(c2nccs2)S(=O)(=O)c2ccc3c(c2)OCCN3c2ccccc2OCC(N)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.