Using CC(C)(C)OC(=O)N1CCC(CO)CC1, Oc1cnc(-c2ccc(Br)cc2)nc1 to produce CC(C)(C)OC(=O)N1CCC(COc2cnc(-c3ccc(Br)cc3)nc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.