Using CCC(CC)N1CCCc2c(C)nc(Nc3ccc(C(C)C)cc3Br)nc21, CCI to produce CCC(CC)N1CCCc2c(C)nc(N(CC)c3ccc(C(C)C)cc3Br)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.