Using COC(=O)Cc1cn2c(n1)NC(C)=C(C(N)=O)C2c1ccc(Cl)cc1Cl to produce COC(=O)Cc1cn2c(-c3ccc(Cl)cc3Cl)c(C(N)=O)c(C)nc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.