Using c1c[nH]cn1, Clc1nc2c(c(NCc3ccc4c(c3)OCO4)n1)CC(Cl)(Cl)C=C2 to produce Clc1ccc2nc(-n3ccnc3)nc(NCc3ccc4c(c3)OCO4)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.