Using COC(=O)C1CCCC1, CC(=O)c1ccc(Oc2ccccc2)cc1 to produce O=C(CC(=O)C1CCCC1)c1ccc(Oc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.