Using CCCOc1ccc(-c2scc(-c3ccccc3Cl)c2CC(=O)OC)cc1 to produce CCCOc1ccc(-c2scc(-c3ccccc3Cl)c2CC(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.