Using CCOC(=O)c1nc2c(Cl)cccc2n(-c2ccc(OC)cc2)c1=O to produce COc1ccc(-n2c(=O)c(C(=O)O)nc3c(Cl)cccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.