Using COC(=O)c1sc(C(C)(C)C)cc1N, O=C(Cl)OCc1ccccc1 to produce COC(=O)c1sc(C(C)(C)C)cc1NC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.