1	56W	(2r,6r)-2-{[(R)-[(3r)-3-(acetylamino)-3-carboxypropyl](hydroxy)phosphoryl]methyl}-6-aminoheptanedioic acid	1.000
2	S37	(2~{S})-2-[[[(3~{S})-3-acetamido-4-oxidanyl-4-oxidanylidene-butyl]-oxidanyl-phosphoryl]methyl]pentanedioic acid	0.750