Using CCOC(=O)C=CNC(=O)Nc1ccc(Cl)c(C(=O)OCC)c1 to produce CCOC(=O)c1cc(-n2c(=O)cc[nH]c2=O)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.