Using O=S(=O)(c1ccccc1)n1ncc2c(-c3ncc(CO)o3)cc(Cl)cc21, [Br-] to produce O=S(=O)(c1ccccc1)n1ncc2c(-c3ncc(CBr)o3)cc(Cl)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.