Using O=C([O-])COc1ccc2c(c1)C(=O)CC1(CCCCC1)O2 to produce O=C(O)COc1ccc2c(c1)C(=O)CC1(CCCCC1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.