(2R,8aS)-2-(3-Benzyloxy-propyl)-4-oxo-3,4,6,7,8,8a-hexahydro-2H-quinoline-1-carboxylic acid phenyl ester

3-benzyloxypropylmagnesium bromide

(S)-2-Pent-4-enyl-2,3-dihydro-1H-pyridin-4-one

(S)-4-Oxo-2-pent-4-enyl-3,4-dihydro-2H-pyridine-1-carboxylic acid phenyl ester

(2R,6S)-2-(3-Benzyloxy-propyl)-4-oxo-6-pent-4-enyl-piperidine-1-carboxylic acid phenyl ester