(S)-2-[2-(tert-butyldimethylsilanyloxy)ethyl]-piperidine-1-carboxylic acid tert-butyl ester

(3aS,5R,9aS)-5-methyl-1,2,3,3a,4,5,9,9a-octahydropyrido[2,1,6-de]quinolizine

tert-butyl (2S,6S)-2-(2-hydroxyethyl)-6-((R)-2-methyl-4-oxopentyl)piperidine-1-carboxylate

2-((2S,6S)-1-(tert-butoxycarbonyl)-6-((R)-2-methyl-4-oxopentyl)piperidin-2-yl)acetic acid

(2S,6R)-2-(2-hydroxyethyl)-6-methylpiperidine-1-carboxylic acid tert-butyl ester

tert-butyl (2S,6S)-2-(2-((tert-butyldimethylsilyl)oxy)ethyl)-6-(5-(dimethoxyphosphoryl)-4-oxopentyl)piperidine-1-carboxylate

(2R,3aS,6aS,9aR)-2-methyldecahydropyrido[2,1,6-de]quinolizin-1(2H)-one