Using COC(=O)c1sc(-c2ccc(Cl)cc2)cc1NC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)Nc1cc(-c2ccc(Cl)cc2)sc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.