Using [N-]=[N+]=Nc1cc(NC(=O)c2c(Cl)cc(Cl)cc2Cl)ccn1 to produce Nc1cc(NC(=O)c2c(Cl)cc(Cl)cc2Cl)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.