1 XEN 1-butyl-1,4,5,6-tetrahydropyridine-3-carboxamide 1.000 2 K1V (3r)-1-acetylpiperidine-3-carboxamide 0.786 3 8GC 3-carbamoyl-1-methylpyridin-1-ium 0.769 4 A1A33 [(3s)-1-(propan-2-yl)piperidin-3-yl]methanol 0.714