Using BrCc1cccc(COC(c2ccccc2)(c2ccccc2)c2ccccc2)n1, [N-]=[N+]=[N-] to produce [N-]=[N+]=NCc1cccc(COC(c2ccccc2)(c2ccccc2)c2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.