Using COC(=O)CCc1cc(C)n(C(OCc2ccc(Cl)cc2)c2cccc(Cl)c2)n1 to produce Cc1cc(CCC(=O)O)nn1C(OCc1ccc(Cl)cc1)c1cccc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.