Using O=C([O-])[O-], CC(=O)CCc1ccc2c(c1)Cc1cc(O)ccc1-2 to produce COc1ccc2c(c1)Cc1cc(CCC(C)=O)ccc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.