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

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

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