Using CCCCCC(O)c1cccc(O)c1, CCOC(=O)C(Br)c1ccc(OC)cc1 to produce CCCCCC(O)c1cccc(OC(C(=O)OCC)c2ccc(OC)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.