(2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-2-(3-pyridyl)-5,6-didehydro-piperidin-4-one

5-chloro-1-(pyridin-3-yl)pentan-1-one

(3R,8aR)-3-phenyl-8a-(3'-pyridyl)perhydropyrido[2,1-b][1,3]oxazole

methyl (S,E)-5-(((R)-1-(naphthalen-1-yl)ethyl)amino)-5-(pyridin-3-yl)pent-2-enoate

methyl (S)-5-(((R)-1-(naphthalen-1-yl)ethyl)amino)-5-(pyridin-3-yl)pentanoate