Using Clc1cc(Cl)cc(Br)c1, Cc1cccc(CC(=O)c2ccccc2)c1 to produce O=C(Cc1ccccc1)c1cc(Cl)cc(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.