1	IPI	3-methylbutylphosphonic acid	1.000
2	2WW	[(1s)-1-amino-3-methylbutyl]phosphonic acid	0.900
3	CYX	(3-formyl-but-3-enyl)-phosphonic acid	0.900
4	PLU	Leucine phosphonic acid	0.900
5	CCP	Butylphosphonate	0.889
6	57H	Prop-2-en-1-ylphosphonic acid	0.778
7	NLP	(1-amino-pentyl)-phosphonic acid	0.727
8	1JJ	[(1s)-1-hydroxypropyl]phosphonic acid	0.700
9	3V2	[(1r)-1-aminopropyl]phosphonic acid	0.700
10	7VD	(2-oxopropyl)phosphonic acid	0.700
11	A1L0T	2-methylpropylphosphonic acid	0.700
12	FFQ	[(1r)-1-hydroxypropyl]phosphonic acid	0.700
13	S0H	(S)-2-hydroxypropylphosphonic acid	0.700
14	TB6	[(2r)-2-hydroxypropyl]phosphonic acid	0.700