(6S,12bR)-tert-butyl-6-formyl-1,2,3,4,6,7-hexahydro-4-oxoindolo[2,3-a]quinolizine-12(12bH)-carboxylate

(6S,12bR)-1,2,3,6,7,12b-hexahydro-6-(hydroxymethyl)indolo[2,3-a]quinolizin-4(12H)-one

(5aS,11bS)-1,2,3,5,5a,6,11,11b-octahydroindolo[2,3-a]oxazolo[4,3,2-de]quinolizin-12-ium tetrafluoroborate

(3S,3'S,8a'R)-3'-(hydroxymethyl)-1-tosyl-2',3',6',7',8',8a'-hexahydro-5'H-spiro[indoline-3,1'-indolizin]-5'-one