Using COC(=O)C1CCC(OS(C)(=O)=O)CC1(C)C, Brc1cn[nH]c1 to produce COC(=O)C1CCC(n2cc(Br)cn2)CC1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.