1	YIV	N-butylformamide	1.000
2	NBN	N-butyl isocyanide	0.857
3	N2H	(4-azanylbutylamino)methanediol	0.778
4	X5A	N-(4-aminobutyl)acetamide	0.778
5	NPN	N-propyl isocyanide	0.714
6	D6O	(~{z})-4-formamido-4-oxidanylidene-but-2-enoic acid	0.700
7	HPL	Heptylformamide	0.700
8	JRY	Hexylcarbamic acid	0.700
9	NMH	(R)-N-(1-methyl-hexyl)-formamide	0.700
10	NWH	N-[(2s)-heptan-2-yl]formamide	0.700
11	UM2	(2s)-2-amino-N-butyl-propanamide	0.700
12	URV	[(2~{S})-2-azanyl-3-methyl-butyl]carbamic acid	0.700
13	X51	1-[(4-aminobutyl)amino]ethane-1,1-diol	0.700