(2S,6S)-2-[(1E,3Z)-(S)-5-((E)-3-Cyclohex-1-enyl-acryloyloxy)-hexa-1,3-dienyl]-6-methyl-piperidine-1-carboxylic acid tert-butyl ester

(2S,6S)-2-((1E,3Z)-(S)-5-Hydroxy-hexa-1,3-dienyl)-6-methyl-piperidine-1-carboxylic acid tert-butyl ester

(2S,6S)-2-((E)-2-Iodo-vinyl)-6-methyl-piperidine-1-carboxylic acid tert-butyl ester

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

1,1-dimethyl<(2R,6S)-2-formyl-6-methyl-1-piperidine>carboxylate