Using CCCS(=O)(=O)N1CCC(CN)(c2ncccc2Br)CC1, O=C(Cl)c1ccc(Cl)cc1Cl to produce CCCS(=O)(=O)N1CCC(CNC(=O)c2ccc(Cl)cc2Cl)(c2ncccc2Br)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.