Using CCCCCCC1C(=O)Oc2c(Sc3ccccc3C)cccc21, [OH-] to produce CCCCCCC(C(=O)O)c1cccc(Sc2ccccc2C)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.