1 0H8 N-(3-carboxypropanoyl)-L-valyl-N-[(1r)-5-amino-1-phosphonopentyl]-L-prolinamide 1.000 2 1ZG N-(3-carboxypropanoyl)-L-valyl-N-{(1r)-1-[(S)-hydroxy(oxido)phosphanyl]-2-phenylethyl}-L-prolinamide 0.737 3 VPF N-(3-carboxypropanoyl)-L-valyl-N-[(1s)-2-phenyl-1-phosphonoethyl]-L-prolinamide 0.737