Using Cc1ccc(S(=O)(=O)n2nc(C)c3cc(Br)c(N)cc32)cc1, O=C(Cl)Cl to produce Cc1ccc(S(=O)(=O)n2nc(C)c3cc(Br)c(N=C=O)cc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.