Using CS(=O)(=O)c1ccc(CBr)c(Cl)c1, Clc1ncc2c(n1)N1CCOCC1CN2 to produce CS(=O)(=O)c1ccc(CN2CC3COCCN3c3nc(Cl)ncc32)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.