Using CC1(C)OB(c2ccc(N3CCOCC3)cc2)OC1(C)C, OCc1cccc(Br)c1 to produce OCc1cccc(-c2ccc(N3CCOCC3)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.