Using COCCC(O)c1cccc(Br)n1, CCOC(=O)COc1ccc(O)cc1C to produce CCOC(=O)COc1ccc(OC(CCOC)c2cccc(Br)n2)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.