Using CCC(CC)c1cccc2nc(Br)n(C)c12, Cc1cc(C)c(C=O)c(C)c1 to produce CCC(CC)c1cccc2nc(C(O)c3c(C)cc(C)cc3C)n(C)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.