(6S,10S)-5,6,7,8,10,11-hexahydro-12-(Z-2'-iodo-2'-butenyl)-3-methoxy-5-methyl-6,10-iminocyclooct[b]indol-9-one

(2R,6S,12bS,13R)-3-Eth-(E)-ylidene-10-methoxy-12-methyl-13-triisopropylsilanyloxymethyl-1,3,4,7,12,12b-hexahydro-2H,6H-2,6-methano-indolo[2,3-a]quinolizine

11-methoxy-1-methyl-17-norsarpagan-16-one

(+)-Na-methyl-16-epigardneral

16-epi-Na-methyl-17-hydroxygardnerine