Using CC1c2ccc(OCCCBr)cc2C1CN1CCCCC1, [N-]=[N+]=[N-] to produce CC1c2ccc(OCCCN=[N+]=[N-])cc2C1CN1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.