phenylmethyl 6-(tert-butyldiphenylsilyloxymethyl)-2-(2-ethoxycarbonylvinyl)-3-vinylpiperidine-1-carboxylate

5-(tert-butyldiphenylsilyloxymethyl)-8-ethylhexahydroindolizin-3-one

phenylmethyl 6-(tert-butyldiphenylsilyloxymethyl)-2-hydroxymethyl-3-vinylpiperidine-1-carboxylate

8-ethyl-5-hydroxymethylhexahydroindolizin-3-one

(5S,8R,8aS)-5-[(Z)-4-(tert-Butyl-diphenyl-silanyloxy)-but-1-enyl]-8-ethyl-octahydro-indolizine