Using COc1cc(Br)c(Cl)cc1-n1nc(-c2ccc(Br)s2)[nH]c1=O to produce O=c1[nH]c(-c2ccc(Br)s2)nn1-c1cc(Cl)c(Br)cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.