Using CC(C)(C)C(=O)CBr, Cc1nn(C)c(O)c1C(=O)c1ccc(Cl)cc1Cl to produce Cc1nn(C)c(OCC(=O)C(C)(C)C)c1C(=O)c1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.