Using CCOC(=O)Cl, COCOc1ccc(CC(CNS(=O)(=O)c2ccc(Cl)cc2)c2cccnc2)cc1 to produce CCOC(=O)N(CC(Cc1ccc(OCOC)cc1)c1cccnc1)S(=O)(=O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.