Using CC(C)(C)OC(=O)N1CCc2nc(Br)sc2C1, OC1CCN(C2CCC2)CC1 to produce CC(C)(C)OC(=O)N1CCc2nc(OC3CCN(C4CCC4)CC3)sc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.