1	NC6	6-{[(cyclohexylamino)carbonyl]amino}hexanoic acid	1.000
2	NC7	7-{[(cyclohexylamino)carbonyl]amino}heptanoic acid	0.762
3	CDU	N-cyclohexyl-N'-decylurea	0.727
4	A1AY1	N-[(1s,2s,4s)-bicyclo[2.2.1]hept-5-en-2-yl]-N'-butyl-N-methylurea	0.700
5	NC4	4-{[(cyclohexylamino)carbonyl]amino}butanoic acid	0.700