1	QIL	N-formyl-L-isoleucine	1.000
2	FVA	N-formyl-L-valine	0.909
3	IML	N-methyl-isoleucine	0.909
4	WZJ	N-methyl-L-alloisoleucine	0.909
5	AN0	N-acetyl-L-norvaline	0.833
6	CDV	3-methyl-2-ureido-butyric acid	0.833
7	DNG	N-formyl-D-norleucine	0.833
8	MV9	(2~{R})-3-methyl-2-(methylamino)butanoic acid	0.818
9	MVA	N-methylvaline	0.818
10	AOR	N~2~-acetyl-L-ornithine	0.769
11	LAY	N-acetyl-L-leucine	0.769
12	66E	N-ethyl-L-valine	0.750
13	9KK	N-methyl norleucine	0.750
14	DNM	N-methyl-D-norleucine	0.750
15	GZJ	(2s)-2-(acetylamino)butanoic acid	0.750
16	MLE	N-methylleucine	0.750
17	MLU	N-methyl-D-leucine	0.750
18	O7G	N,N-dimethyl-L-valine	0.750
19	MDH	N-methyldehydrobutyrine	0.727
20	73P	(2~{S})-6-azanyl-2-(carboxyamino)hexanoic acid	0.714
21	NLG	N-acetyl-L-glutamate	0.714
22	NLQ	N~2~-acetyl-L-glutamine	0.714