Using O=C1CCC(=O)N1Br, COC(=O)C(C)c1ccc(S(C)(=O)=O)cc1 to produce COC(=O)C(C)(Br)c1ccc(S(C)(=O)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.