Using [N-]=[N+]=[N-], O=C1C(Br)CC(c2ccccc2)CCN1CC1CC1 to produce [N-]=[N+]=NC1CC(c2ccccc2)CCN(CC2CC2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.