Using CCOC(=O)CCc1cccc(OCC=C(c2ccc(Br)cc2)c2ccc(Br)cc2)c1 to produce O=C(O)CCc1cccc(OCC=C(c2ccc(Br)cc2)c2ccc(Br)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.