Using COc1cccc([C@@H](C)Nc2nc(Nc3cccc(CO)c3)ncc2Cl)c1, BrB(Br)Br to produce C[C@@H](Nc1nc(Nc2cccc(CBr)c2)ncc1Cl)c1cccc(O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.