Using COc1ccc(-c2nnc3c4ccccc4c(Cl)nn23)cc1, CC(=O)[O-] to produce COc1ccc(-c2nnc3c4ccccc4c(O)nn23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.