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