Using Nc1ncnc2nc[nH]c12, O=c1c2cc(Br)ccc2nc(CCl)n1-c1ccccc1Cl to produce Nc1ncnc2c1ncn2Cc1nc2ccc(Br)cc2c(=O)n1-c1ccccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.