Using O=C([O-])O, COCC(CO)(COC)NC(=O)c1ccc(Cl)s1 to produce COCC(COC)(NC(=O)c1ccc(Cl)s1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.