1	BPF	N,N'-(furan-2,5-diylbis{benzene-4,1-diyl[(z)-aminomethylylidene]})diethanaminium	1.000
2	D18	2,5-bis{[4-(N-isopropyl)diaminomethyl]phenyl}furan	0.931
3	BGF	2,5-bis(4-guanylphenyl)furan	0.724