Using [N-]=[N+]=[N-], CCN1CCN(Cc2ccc(NC(=O)N3CCc4cc(Oc5cc(Cl)ncn5)ccc43)cc2)CC1 to produce CCN1CCN(Cc2ccc(NC(=O)N3CCc4cc(Oc5cc(N=[N+]=[N-])ncn5)ccc43)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.