Using COc1ccc(-c2c(-c3ccccc3)oc3ncnc(Nc4cccc(CCC(=O)O)c4)c23)cc1 to produce COc1ccc(-c2c(-c3ccccc3)oc3ncnc(Nc4cccc(CCC(=O)[O-])c4)c23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.