Using CCOC(=O)C(O)c1c(C)nc2c(C)c(-c3cccc(Cl)c3)nn2c1Cl to produce CCOC(=O)C(=O)c1c(C)nc2c(C)c(-c3cccc(Cl)c3)nn2c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.