1 RNH (2r)-N-[3-(heptylamino)-3-oxopropyl]-2,4-dihydroxy-3,3-dimethylbutanamide 1.000 2 MV1 (2s)-2,4-dihydroxy-3,3-dimethyl-N-[3-(nonylamino)-3-oxopropyl]butanamide 0.917 3 PN4 (2r)-2,4-dihydroxy-3,3-dimethyl-N-[3-oxo-3-(pentylamino)propyl]butanamide 0.909 4 C0D (2r)-2-hydroxy-3,3-dimethyl-N-[3-oxo-3-(pentylamino)propyl]butanamide 0.864 5 ENV (2r)-N-{3-[(5-fluoro-4-oxopentyl)amino]-3-oxopropyl}-2,4-dihydroxy-3,3-dimethylbutanamide 0.833 6 N7G (2r)-2-hydroxy-N-{3-[(5-methoxypentyl)amino]-3-oxopropyl}-3,3-dimethylbutanamide 0.792 7 27Q N-heptyl-N~3~-[(2r)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alaninamide 0.778 8 PCO 2,4-dihydroxy-N-[2-(2-mercapto-vinylcarbamoyl)-ethyl]-3,3-dimethyl-butyramide 0.739 9 PNY (2r)-2,4-dihydroxy-3,3-dimethyl-N-{3-oxo-3-[(2-sulfanylethyl)amino]propyl}butanamide 0.739 10 2GH N~3~-[(2r)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-N-pentyl-beta-alaninamide 0.704