Using CCOC(Cc1ccc(OCCN2COc3ccccc3C2=O)cc1)C(=O)O to produce CCOC(Cc1ccc(OCCN2COc3ccccc3C2=O)cc1)C(=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.