Using CS(=O)(=O)OCC1COC(=O)N1c1ccc(Cl)cc1, COC(=O)c1ccc(O)cc1 to produce COC(=O)c1ccc(OCC2COC(=O)N2c2ccc(Cl)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.