Using CN(C)C=O, Clc1ccc(-c2noc(-c3occc3Br)n2)cc1 to produce O=Cc1cc(Br)c(-c2nc(-c3ccc(Cl)cc3)no2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.