1	PAL	N-(phosphonacetyl)-L-aspartic acid	1.000
2	1IP	N~2~-(phosphonoacetyl)-L-asparagine	0.882
3	6PR	(S)-4-amino-4-oxo-3-(2-phosphonoacetamido)butanoic acid	0.882
4	KKD	N-acetyl-L-aspartic acid	0.750