Using COc1ccc(CNc2nccs2)cc1, O=S(=O)(Cl)c1ccc2c(Br)c(O)ncc2c1 to produce COc1ccc(CN(c2nccs2)S(=O)(=O)c2ccc3c(Br)c(O)ncc3c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.