Using NNc1nncc(-c2ccc(Cl)cc2)c1-c1ccc(Cl)cc1, C1CCOC1 to produce O=c1[nH]nc2c(-c3ccc(Cl)cc3)c(-c3ccc(Cl)cc3)cnn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.