(ethyl carbonic) (5S,8R,8aS)-8-methyl-3-oxooctahydroindolizine-5-carboxylic anhydride

(5R,8R,8aS)-(-)-5-(7-hept-3-enyl)-8-methylindolizidine

(-)-(5S,8R,8aS)-5-(2-hydroxyethyl)-8-methylindolizidine