1 RH2 N~2~-{[5-(pyridin-3-yl)thiophen-2-yl]methyl}-L-lysinamide 1.000 2 3D5 N~2~-[4-(pyridin-3-yl)benzyl]-D-lysinamide 0.875 3 3D6 N~2~-[4-(pyridin-3-yl)benzyl]-L-lysinamide 0.875 4 3C6 N~2~-[4-(pyridin-3-yl)benzoyl]-L-lysinamide 0.840 5 3D2 N~2~-[3-(pyridin-3-yl)benzyl]-L-lysinamide 0.731