(3R,4S,6S,9aS)-(-)-{[(2,2-dimethyl)diphenylsiloxy]methyl}-3-(methoxymethoxy)-6-(phenylsulfonylmethyl)octahydro-2H-quinolizine

4-((4aS,6S,8aR)-2,2-Dimethyl-hexahydro-[1,3]dioxino[5,4-b]pyridin-6-yl)-butan-1-ol

(4aS,6S,8aR)-2,2-Dimethyl-6-(4-oxo-butyl)-hexahydro-[1,3]dioxino[5,4-b]pyridine-5-carboxylic acid 2,2,2-trichloro-ethyl ester

trichloroethyl (4aS,6S,8aR)-(-)-hexahydro-6-(4-hydroxybutyl)-2,2-dimethyl-4H-1,3-dioxino[5,4-b]pyridine-5-carboxylate

(4aS,6S,8aR)-6-((E)-5-Benzenesulfonyl-pent-4-enyl)-2,2-dimethyl-hexahydro-[1,3]dioxino[5,4-b]pyridine-5-carboxylic acid 2,2,2-trichloro-ethyl ester