Using O=C(O)c1ccccc1, COC=C(C(=O)OC)c1ccccc1CBr to produce COC=C(C(=O)OC)c1ccccc1COC(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.