Using COc1cc(/C=C/C(=O)O)cc(-c2ccc3cc(OC)ccc3c2)c1 to produce COc1cc(CCC(=O)O)cc(-c2ccc3cc(OC)ccc3c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.