Using CCOC(C)=O, CC(C)(C)OC(=O)c1ccc2nc(Cl)sc2c1 to produce CCOC(=O)Cc1nc2ccc(C(=O)OC(C)(C)C)cc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.