Using CCOC(=O)Cc1ccc(-n2c(CC)nc3cc(Cl)c(Cl)cc32)cc1 to produce CCc1nc2cc(Cl)c(Cl)cc2n1-c1ccc(CC(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.