(2S,6S)-cis-2-formyl-6-methyl-N-Boc-piperidine

N-tert-butoxycarbonyl-himandravine

(2S,6S)-2-((E)-(S)-5-Hydroxy-hex-1-en-3-ynyl)-6-methyl-piperidine-1-carboxylic acid tert-butyl ester

(2S,6S)-2-Methyl-6-[(E)-2-((3S,3aR,4R,4aR,9aS)-3-methyl-1-oxo-1,3,3a,4,4a,5,6,7,8,9a-decahydro-naphtho[2,3-c]furan-4-yl)-vinyl]-piperidine-1-carboxylic acid tert-butyl ester

(2S,6R)-2-Methyl-6-[(E)-2-((3R,3aS,4S,4aR,8aS,9aR)-3-methyl-1-oxo-dodecahydro-naphtho[2,3-c]furan-4-yl)-vinyl]-piperidine-1-carboxylic acid tert-butyl ester