1	CDV	3-methyl-2-ureido-butyric acid	1.000
2	FVA	N-formyl-L-valine	0.909
3	EU0	1-[(2~{S})-3-methyl-1-oxidanylidene-butan-2-yl]guanidine	0.833
4	QIL	N-formyl-L-isoleucine	0.833
5	MV9	(2~{R})-3-methyl-2-(methylamino)butanoic acid	0.818
6	MVA	N-methylvaline	0.818
7	NCB	N-carbamoyl-alanine	0.818
8	CDT	4-methylsulfanyl-2-ureido-butyric acid	0.769
9	NCD	N-carbamoyl-L-aspartate	0.769
10	W9J	N-carbamoyl-L-methionine	0.769
11	66E	N-ethyl-L-valine	0.750
12	GZJ	(2s)-2-(acetylamino)butanoic acid	0.750
13	IML	N-methyl-isoleucine	0.750
14	O7G	N,N-dimethyl-L-valine	0.750
15	WZJ	N-methyl-L-alloisoleucine	0.750
16	MDH	N-methyldehydrobutyrine	0.727