Using CCOC(=O)c1ccccc1O, O=C(O)CCCCc1ccccc1 to produce CCOC(=O)C1C=CC=CC1(O)C(=O)CCCCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.