Using CCCBr, CCN(Cc1cc(Br)ccc1O)c1ccc(C(=O)OC)cn1 to produce CCCOc1ccc(Br)cc1CN(CC)c1ccc(C(=O)OC)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.