benzyl N-allyl-N-(2-benzyloxy-1-p-methoxyphenylbut-3-enyl)carbamate

(2R,3S)-2-(hydroxymethyl)-1,2,3,6-tetrahydropyridin-3-ol

3-benzoyloxy-piperidine-1,2-dicarboxylic acid 1-benzyl ester

(2R,3R)-2-(tert-butyldimethylsilyloxymethyl)-6-ethoxy-3-hydroxy-3,6-dihydro-2H-pyridine-1-carboxylic acid benzyl ester

(2R,3S)-2-(tert-butyldimethylsilyloxymethyl)-6-ethoxy-3-hydroxy-3,6-dihydro-2H-pyridine-1-carboxylic acid benzyl ester