1 2F9 N-(4-fluorobenzoyl)-L-valyl-O-[(S)-{[(1s)-1,3-dicarboxypropyl]amino}(hydroxy)phosphoryl]-L-serine 1.000 2 2F7 N-(4-fluorobenzoyl)-L-alloisoleucyl-O-[(S)-{[(1s)-1,3-dicarboxypropyl]amino}(hydroxy)phosphoryl]-L-serine 0.973