Using CC1(C)OB(c2ccc(CN3CCOCC3)cc2)OC1(C)C, CCNc1cc(Br)cc(C(=O)OC)c1C to produce CCNc1cc(-c2ccc(CN3CCOCC3)cc2)cc(C(=O)OC)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.