Using CCC(Br)c1nc2cccc(C)n2c(=O)c1I, [N-]=[N+]=[N-] to produce CCC(N=[N+]=[N-])c1nc2cccc(C)n2c(=O)c1I, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.