Using CC(C)COC(=O)c1ccc2c3cccc4c(C(=O)OCC(C)C)ccc(c5cccc1c52)c43 to produce O=C([O-])c1ccc2c3cccc4c(C(=O)[O-])ccc(c5cccc1c52)c43, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.