Using COC(=O)c1cnc(Cl)c(Cl)c1Nc1ccc(Br)cc1Cl, [N-]=[N+]=[N-] to produce COC(=O)c1cnc(N=[N+]=[N-])c(Cl)c1Nc1ccc(Br)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.