Using [N-]=[N+]=[N-], ClCC1CN(Cc2ccccc2)CCN1Cc1ccccc1 to produce [N-]=[N+]=NCC1CN(Cc2ccccc2)CCN1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.